Matari AudioLicense

Release history

What’s new

Latest first. RSS.

BUFFRpreview

1.1.00

9 new · 14 better · 3 faster · 10 fixed

New

BUFFR 1.1 is a ground-up rebuild: a new editor, a new spectrogram engine, and a lot more music-aware.

  • New

    A brand-new editor. Rebuilt from scratch: faster, cleaner, and it floats in its own frosted window. Settings, Export and the other panels open as real native windows, and fall back inside the plugin where the host can't make one.

  • New

    Five new themes: Paper, Midnight, Studio Console, Acid and Vaporwave, or build your own. Style sliders for Corners, Density, Depth, Translucency, Hairlines, Motion, Accent and Blur let you tune the whole look, and frosted windows are one switch.

  • New

    GPU-accelerated spectrogram, three ways to look. Enhanced for the clearest picture, WSST (wavelet synchrosqueezing) for razor-thin lines, and Classic. Pick one in the Spectrogram appearance panel.

  • New

    Sheet music. Click the music button on the MIDI lane and see what you played as real notation: grand staff, beams, ties, triplets, key and time signature, with your bar numbers.

  • New

    MusicXML export. Shift-drag MIDI into MuseScore, Dorico or Sibelius, already in the right key and time signature, with voices, chord symbols and key changes.

  • New

    One musical reading everywhere. Chord labels, note names and the score all agree, built from the notes that actually sound together (Fmaj9/E, F#/A#, C#sus2).

  • New

    Velocity and expression lane. Shape note velocities and curves, with undo. Your original take is never touched.

  • New

    Sign in with MuseHub or a BUFFR license key. Either one unlocks BUFFR, and a MuseHub copy unlocks as soon as you open the window after signing in.

  • New

    Aux Opens Sound Gate. A new project setting (off by default) decides whether auxiliary buses can open the gate in Detected capture mode. They are always recorded.

Better

Smoother, smarter, sharper.

  • Better

    Drum hits and sweeps stay sharp in WSST. A click or kick lands in one clean column at the moment it hits, steady tones stay on one row, and rising sweeps follow their line, with no blur and no spray of stray dots. Dense music keeps its body instead of turning into dashes.

  • Better

    Sharper spectrogram. Deep zoom draws smooth lines instead of blocks, and zoomed-out views show twice the detail.

  • Better

    Smarter Smart Quantize. Chords, melodies and arpeggios each get their own grid, so swing stays swung and loose playing doesn't turn into odd triplets. Bitwig melodies quantize properly.

  • Better

    Notation that reads like a score. Beat and half-bar rhythms instead of dotted clutter, held notes in their own voice, hands split on the staff, ties that curve cleanly, and key changes cancelled with naturals. The score covers the whole take and scales with its panel.

  • Better

    Lanes glide when you collapse or restore them. Squeeze a divider to give one lane the whole view.

  • Better

    New output meters: separate left and right bars with a slim gain fader.

  • Better

    One tidy look. Lanes, drawers and the toolbar share one set of sizes and a four-size type scale, and Settings labels are shorter.

  • Better

    Global MIDI remembers your controllers. Links survive replugs and restarts on Linux, and every linked controller shows its own status in Settings › Input: connected, unplugged, busy, or why it wouldn't open.

  • Better

    Settings › Input lists only inputs that carry signal, with one-word states (Signal, Silent, Off in host).

  • Better

    The Channel drawer's choice is saved with your DAW project and comes back when it reopens.

  • Better

    Easier to read and use. Screen readers and native text input work everywhere, and Hebrew, Chinese, Japanese, Korean and emoji text display properly.

  • Better

    Better support reports. Move through long logs with the keyboard and attach screenshots.

  • Better

    Clearer activation messages. If BUFFR can't reach the license server you're told so, a refused key shows the reason, and nothing private lands in your logs.

  • Better

    Windows no longer needs the Microsoft Visual C++ runtime. DAWs stopped reporting the plug-in as missing.

Faster

Lighter on your machine.

  • Faster

    Lighter on your CPU. Waveforms stream in smoothly, and dense MIDI, idle screens and audio processing do less work.

  • Faster

    Spectrograms use far less graphics memory, and the editor redraws less while idle.

  • Faster

    Every BUFFR in your DAW shares one Global MIDI service and one connection per controller.

Fixed

The annoying stuff, gone.

  • Fixed

    Drags just work. Audio and MIDI drags start reliably, show what you're dragging with real waveform and spectrogram thumbnails, and bad drops are refused.

  • Fixed

    Fewer host crashes. An internal error while BUFFR processes audio, activates, or saves or loads its state plays silence for that block instead of taking your DAW down, and the editor survives graphics resets.

  • Fixed

    One plugin can't break another. Closing one BUFFR no longer stops another one's imports or Audio-to-MIDI.

  • Fixed

    Settings never get lost or mixed up when several BUFFR windows are open, and picking a theme preset no longer wipes your Custom theme.

  • Fixed

    The spectrogram doesn't go blurry when you zoom back in, pan or run low on graphics memory.

  • Fixed

    Automation is sample-accurate from the very first change, and long expression curves stay connected.

  • Fixed

    Exports skip channels that only hold inaudible signal (below about -160 dBFS). The sample is still kept in the recording.

  • Fixed

    macOS activation is more reliable, an activated Mac stays recognized between launches, and the installed app passes the signature check.

  • Fixed

    A MuseHub copy that loaded before you signed in now unlocks when you open its window, with no need to press Check MuseHub again.

  • Fixed

    A failed Global MIDI link or reset says so instead of doing nothing, and first-time setup on Linux links your USB controller, not the system's Midi Through port.

macOS · 1.1.00 · Windows · 1.1.00 · Linux · 1.1.00

KURVbeta

0.7.00

1 new · 1 better · 1 faster · 2 fixed

New

  • Breaking Additive redesign with eight families and twenty algorithms, shared curve shaping, correlated variation, dynamic stereo and directional harmonics. Old additive schema 1/2 states are rejected; host parameter identities remain reserved.

Better

  • Horizontal module headers, compact folded previews, complete routing rows and shared curve editors keep dense racks usable. RESET SHAPE restores additive amplitudes independently.

Faster

  • Reuse prepared shape, field and control inputs, exact immutable spectral checkpoints, and compatible gain rows while retaining private note and lane clocks.

Fixed

  • Temporal operators start from their correct histories. Additive source envelopes excite Resonator, Smear and Deresonate before processing, allowing released notes to ring while group gain, mute and routing remain effective.

  • Timestamped group, source and effect automation preserves smooth gain and coefficient transitions across callback partitions.

macOS · 0.7.00 · Windows · 0.7.00 · Linux · 0.7.00

KURVbeta

0.6.91

1 new · 1 faster · 3 fixed

New

  • The Windows download now includes the standalone KURV.exe.

Faster

  • Changing a material value (such as a morph) updates only that value instead of re-encoding the whole scene.

Fixed

  • Integrated graphics on Windows (Intel, AMD APUs) are supported properly. The editor now tries DX12 before Vulkan, checks each graphics adapter before using it and moves on to the next one (or to software drawing) instead of crashing, and runs its GPU shaders with safety checks.

  • Windows builds now use Microsoft's toolchain with the modern DXC shader compiler built in, and need nothing installed alongside the plugin.

  • Resizing the editor on Windows no longer drops it to slow software drawing.

macOS · 0.6.91 · Windows · 0.6.91 · Linux · 0.6.91

KURVbeta

0.6.88

11 new · 7 better · 8 faster · 14 fixed

New

  • Bigger patches: up to 16 groups and 64 oscillators, freely spread across groups, with sixteen group colours. Old patches load exactly as they were, and DAW automation keeps working.

  • A permanent MACROS panel above the modulators. Add macro knobs or ON/OFF buttons with its +, rename them by double-clicking, and route them like any other modulation source, including parent modulation. Existing macros move into the panel automatically.

  • Every modulator has a SMOOTH knob that glides its output. RANDOM SMOOTH is replaced by RANDOM HOLD plus SMOOTH; old patches convert automatically and sound the same.

  • Twelve new additive operators: SHAPER, SMEAR, GLIDE, DERESONATE, COMPRESS, NOISIFY, DRIFT, RESONATOR, HARMONIZER, QUANTIZE, FORMULA and PHASE BLUR. Spectral Filter gains KEY TRACK.

  • NONLINEAR is now a full resonant NL filter with nine characters (Clean, Saturated, Tubular, Clipped, Warm, Biased, Fuzzy, Metallic, Digital) and five types. Old patches load with the closest match.

  • OVERSAMPLING AUTO runs clean patches at 1x (about 40-50% less CPU) and switches to 2x only where a patch needs it, with constant latency so DAW delay compensation never shifts. New instances and the Init patch now start in AUTO; existing presets keep their saved setting, and manual 1x-4x remain available.

  • Oscillators, processors and AUX modules have power buttons that bypass them while keeping their settings and routing.

  • The arpeggiator has an editable STEPS control from 1 to 32, and RANDOMIZE changes gates and probabilities in one undoable step.

  • The header shows a live output scope that triggers like an oscilloscope, so held notes draw a steady waveform.

  • Click an additive partial to edit its RATIO, PHASE and PAN in a small popover. Click a VA waveform to switch between 2D and 3D views, and drag it to scrub the table.

  • Native floating Wayland editors for CLAP hosts that ask for one.

Better

  • A cleaner, quieter header: one slanted blade with the preset name and scope, slim pitch/mod wheels and XY pad, and POLY / MONO / LEGATO, voices and glide always visible and automatable. The Init preset command is back in view.

  • Every module has one menu. Click or right-click a module's name rail to search, switch type, duplicate, reset or remove. Filters are grouped into FILTERS, PHASERS and RESONATORS.

  • Operator and modulator cards share one header style, collapse to a single row with their modulation pies welded underneath, and expand with a smooth animation. Crowded modulator pies wrap across the card so every one stays reachable.

  • Modulation routing is easier: dragging a source snaps to the nearest +, route pies show the configured amount and the live value, and parent modulation (modulating a route's amount) has its own pies, rings and colours.

  • More of KURV is automatable from your DAW, including unison and modulator controls such as an LFO driving another modulator's SMOOTH. Every existing automation lane keeps its identity.

  • Filter graphs show the real sound. Scream, driven ladders, every Nonlinear character and phaser notches are measured through the actual filter and drawn smoothly at any editor size. The cutoff handle sits on the curve.

  • VA at 1x is flat to 18 kHz and aliases less than the old 2x on warped shapes. Oscillators are no longer EQ'd, so every source sounds exactly as generated. 1x adds no latency, and 2x adds 19 samples instead of 33.

Faster

  • Continuous oscillator drags skip unrelated patch validation and spectral preparation, and retain unchanged editor cards. Animated unison fields follow display refresh without a frame-rate cap and pause when hidden.

  • Opening the editor defers undo snapshot work until editing starts, and the preset browser scans folders in the background.

  • Much lower CPU. A held single note uses about 60% fewer instructions than in 0.6.51, and 32 notes about 80% fewer. Since then, every sounding callback has dropped by roughly another 1,000-1,200 instructions and idle by about 16%, all with bit-identical output. Heavy patches spread voices across up to four CPU cores, and the fastest code for your CPU (SSE4.1, AVX2 or AVX-512) is picked at startup.

  • Saving a project no longer re-encodes unchanged synth state. In REAPER, saving a maximal dense patch drops from about 1.2 s to about 0.11 s, and a maximal compressible patch from about 144 ms to about 4 ms.

  • Modulating additive operators, additive pitch and Ripple SPEED costs about the same as leaving them static. The spectral operators cost about a tenth of what they did, and Modal Bank is 3-7x cheaper.

  • Much less memory. Identical Spectral Tables and resynthesis sources are shared between slots and plugin instances, filter and additive memory is only reserved for what the patch uses, the init patch is about 60 MiB smaller per instance, and recalling large Spectral Tables no longer holds duplicate copies.

  • A much lighter editor. An idle editor no longer redraws and uses about 0.1% CPU, a settled editor allocates nothing on quiet frames, scrolling and dragging allocate far less, offscreen cards stop rebuilding, and fast parameter drags no longer lag in Bitwig or other hosts.

  • Idle background threads sleep until there is work, and CPU, level and LFO telemetry pause while no editor is watching.

Fixed

  • Knob drags, automation edits and editor zoom reach the DAW on its own UI thread again, so VST3 hosts record gestures and resize reliably while drawing runs in the background.

  • The first click on a dropdown item (for example LFO in the module menu) now works instead of needing a second click.

  • If a graphics driver crashes while the editor starts, KURV remembers it and opens with software drawing next time instead of crashing again. A crash inside drawing also switches to software drawing without closing the editor.

  • The editor no longer freezes the DAW on Windows. Drawing moved off the host's UI thread to its own render thread, follows the display's refresh rate with no cap, redraws only what changed, and keeps its GPU device instead of falling back to slow software drawing.

  • Windows voice helpers no longer use time-critical priority or spin indefinitely while waiting for other cores.

  • Clicks follow the double-click timing exactly. Double-clicking a curve adds a point, and a third click no longer removes it. Toggling edit mode with + no longer counts as a double-click on the pie, a pie removed by double-click stays removed, and dragging from a newly created pie draws a single cable instead of two.

  • Large Spectral Table projects save and recall losslessly in CLAP and VST3.

  • The editor opens again in Bitwig and other hosts on Wayland desktops.

  • Changing or modulating an additive pitch no longer causes CPU spikes or dropouts, and fast additive edits are no longer occasionally lost.

  • Modal Bank is audible again, PHASE BLUR affects the sound, and the clean diode ladder stays stable under fast cutoff modulation.

  • Legato and mono play correctly: overlapping notes keep their envelopes and LFO phase, and returning to a held note restores its pressure, volume and pan.

  • Spectral tables and Grain controls take part in undo/redo, and deleting an oscillator frees its memory safely.

  • Saving and reloading a project in CLAP hosts no longer lets stale automation overwrite the recalled values.

  • Short Grain recordings play correctly, group header buttons stay inside their header at narrow widths, and many smaller fixes to modulation display, keyboard navigation and drag precision.

macOS · 0.6.88 · Windows · 0.6.88 · Linux · 0.6.88

KURVbeta

0.6.87

11 new · 7 better · 8 faster · 11 fixed

New

  • Bigger patches: up to 16 groups and 64 oscillators, freely spread across groups, with sixteen group colours. Old patches load exactly as they were, and DAW automation keeps working.

  • A permanent MACROS panel above the modulators. Add macro knobs or ON/OFF buttons with its +, rename them by double-clicking, and route them like any other modulation source, including parent modulation. Existing macros move into the panel automatically.

  • Every modulator has a SMOOTH knob that glides its output. RANDOM SMOOTH is replaced by RANDOM HOLD plus SMOOTH; old patches convert automatically and sound the same.

  • Twelve new additive operators: SHAPER, SMEAR, GLIDE, DERESONATE, COMPRESS, NOISIFY, DRIFT, RESONATOR, HARMONIZER, QUANTIZE, FORMULA and PHASE BLUR. Spectral Filter gains KEY TRACK.

  • NONLINEAR is now a full resonant NL filter with nine characters (Clean, Saturated, Tubular, Clipped, Warm, Biased, Fuzzy, Metallic, Digital) and five types. Old patches load with the closest match.

  • OVERSAMPLING AUTO runs clean patches at 1x (about 40-50% less CPU) and switches to 2x only where a patch needs it, with constant latency so DAW delay compensation never shifts. New instances and the Init patch now start in AUTO; existing presets keep their saved setting, and manual 1x-4x remain available.

  • Oscillators, processors and AUX modules have power buttons that bypass them while keeping their settings and routing.

  • The arpeggiator has an editable STEPS control from 1 to 32, and RANDOMIZE changes gates and probabilities in one undoable step.

  • The header shows a live output scope that triggers like an oscilloscope, so held notes draw a steady waveform.

  • Click an additive partial to edit its RATIO, PHASE and PAN in a small popover. Click a VA waveform to switch between 2D and 3D views, and drag it to scrub the table.

  • Native floating Wayland editors for CLAP hosts that ask for one.

Better

  • A cleaner, quieter header: one slanted blade with the preset name and scope, slim pitch/mod wheels and XY pad, and POLY / MONO / LEGATO, voices and glide always visible and automatable. The Init preset command is back in view.

  • Every module has one menu. Click or right-click a module's name rail to search, switch type, duplicate, reset or remove. Filters are grouped into FILTERS, PHASERS and RESONATORS.

  • Operator and modulator cards share one header style, collapse to a single row with their modulation pies welded underneath, and expand with a smooth animation. Crowded modulator pies wrap across the card so every one stays reachable.

  • Modulation routing is easier: dragging a source snaps to the nearest +, route pies show the configured amount and the live value, and parent modulation (modulating a route's amount) has its own pies, rings and colours.

  • More of KURV is automatable from your DAW, including unison and modulator controls such as an LFO driving another modulator's SMOOTH. Every existing automation lane keeps its identity.

  • Filter graphs show the real sound. Scream, driven ladders, every Nonlinear character and phaser notches are measured through the actual filter and drawn smoothly at any editor size. The cutoff handle sits on the curve.

  • VA at 1x is flat to 18 kHz and aliases less than the old 2x on warped shapes. Oscillators are no longer EQ'd, so every source sounds exactly as generated. 1x adds no latency, and 2x adds 19 samples instead of 33.

Faster

  • Continuous oscillator drags skip unrelated patch validation and spectral preparation, and retain unchanged editor cards. Animated unison fields follow display refresh without a frame-rate cap and pause when hidden.

  • Opening the editor defers undo snapshot work until editing starts, and the preset browser scans folders in the background.

  • Much lower CPU. A held single note uses about 60% fewer instructions than in 0.6.51, and 32 notes about 80% fewer. Since then, every sounding callback has dropped by roughly another 1,000-1,200 instructions and idle by about 16%, all with bit-identical output. Heavy patches spread voices across up to four CPU cores, and the fastest code for your CPU (SSE4.1, AVX2 or AVX-512) is picked at startup.

  • Saving a project no longer re-encodes unchanged synth state. In REAPER, saving a maximal dense patch drops from about 1.2 s to about 0.11 s, and a maximal compressible patch from about 144 ms to about 4 ms.

  • Modulating additive operators, additive pitch and Ripple SPEED costs about the same as leaving them static. The spectral operators cost about a tenth of what they did, and Modal Bank is 3-7x cheaper.

  • Much less memory. Identical Spectral Tables and resynthesis sources are shared between slots and plugin instances, filter and additive memory is only reserved for what the patch uses, the init patch is about 60 MiB smaller per instance, and recalling large Spectral Tables no longer holds duplicate copies.

  • A much lighter editor. An idle editor no longer redraws and uses about 0.1% CPU, a settled editor allocates nothing on quiet frames, scrolling and dragging allocate far less, offscreen cards stop rebuilding, and fast parameter drags no longer lag in Bitwig or other hosts.

  • Idle background threads sleep until there is work, and CPU, level and LFO telemetry pause while no editor is watching.

Fixed

  • The editor no longer freezes the DAW on Windows. Drawing moved off the host's UI thread to its own render thread, follows the display's refresh rate with no cap, redraws only what changed, and keeps its GPU device instead of falling back to slow software drawing.

  • Windows voice helpers no longer use time-critical priority or spin indefinitely while waiting for other cores.

  • Clicks follow the double-click timing exactly. Double-clicking a curve adds a point, and a third click no longer removes it. Toggling edit mode with + no longer counts as a double-click on the pie, a pie removed by double-click stays removed, and dragging from a newly created pie draws a single cable instead of two.

  • Large Spectral Table projects save and recall losslessly in CLAP and VST3.

  • The editor opens again in Bitwig and other hosts on Wayland desktops.

  • Changing or modulating an additive pitch no longer causes CPU spikes or dropouts, and fast additive edits are no longer occasionally lost.

  • Modal Bank is audible again, PHASE BLUR affects the sound, and the clean diode ladder stays stable under fast cutoff modulation.

  • Legato and mono play correctly: overlapping notes keep their envelopes and LFO phase, and returning to a held note restores its pressure, volume and pan.

  • Spectral tables and Grain controls take part in undo/redo, and deleting an oscillator frees its memory safely.

  • Saving and reloading a project in CLAP hosts no longer lets stale automation overwrite the recalled values.

  • Short Grain recordings play correctly, group header buttons stay inside their header at narrow widths, and many smaller fixes to modulation display, keyboard navigation and drag precision.

macOS · 0.6.87 · Windows · 0.6.87 · Linux · 0.6.87

BUFFRstable

1.0.93

3 fixed

Fixed

  • Activating BUFFR on macOS is more reliable, and an activated Mac stays recognized between launches.

  • License status stays correct when a host reloads BUFFR, when several BUFFR instances run at once, and on Windows while another instance updates it.

  • If activation cannot reach the license server (no connection, proxy, firewall, DNS or TLS trouble), BUFFR now says so instead of claiming the key was not accepted. A refused key shows the reason, and both appear in the Activity log and in Report a Problem without the key.

macOS · 1.0.93 · Windows · 1.0.93 · Linux · 1.0.93

KURVbeta

0.6.86

11 new · 7 better · 6 faster · 9 fixed

New

  • Bigger patches: up to 16 groups and 64 oscillators, freely spread across groups, with sixteen group colours. Old patches load exactly as they were, and DAW automation keeps working.

  • A permanent MACROS panel above the modulators. Add macro knobs or ON/OFF buttons with its +, rename them by double-clicking, and route them like any other modulation source, including parent modulation. Existing macros move into the panel automatically.

  • Every modulator has a SMOOTH knob that glides its output. RANDOM SMOOTH is replaced by RANDOM HOLD plus SMOOTH; old patches convert automatically and sound the same.

  • Twelve new additive operators: SHAPER, SMEAR, GLIDE, DERESONATE, COMPRESS, NOISIFY, DRIFT, RESONATOR, HARMONIZER, QUANTIZE, FORMULA and PHASE BLUR. Spectral Filter gains KEY TRACK.

  • NONLINEAR is now a full resonant NL filter with nine characters (Clean, Saturated, Tubular, Clipped, Warm, Biased, Fuzzy, Metallic, Digital) and five types. Old patches load with the closest match.

  • OVERSAMPLING AUTO runs clean patches at 1x (about 40-50% less CPU) and switches to 2x only where a patch needs it, with constant latency so DAW delay compensation never shifts. New instances and the Init patch now start in AUTO; existing presets keep their saved setting, and manual 1x-4x remain available.

  • Oscillators, processors and AUX modules have power buttons that bypass them while keeping their settings and routing.

  • The arpeggiator has an editable STEPS control from 1 to 32, and RANDOMIZE changes gates and probabilities in one undoable step.

  • The header shows a live output scope that triggers like an oscilloscope, so held notes draw a steady waveform.

  • Click an additive partial to edit its RATIO, PHASE and PAN in a small popover. Click a VA waveform to switch between 2D and 3D views, and drag it to scrub the table.

  • Native floating Wayland editors for CLAP hosts that ask for one.

Better

  • A cleaner, quieter header: one slanted blade with the preset name and scope, slim pitch/mod wheels and XY pad, and POLY / MONO / LEGATO, voices and glide always visible and automatable. The Init preset command is back in view.

  • Every module has one menu. Click or right-click a module's name rail to search, switch type, duplicate, reset or remove. Filters are grouped into FILTERS, PHASERS and RESONATORS.

  • Operator and modulator cards share one header style, collapse to a single row with their modulation pies welded underneath, and expand with a smooth animation. Crowded modulator pies wrap across the card so every one stays reachable.

  • Modulation routing is easier: dragging a source snaps to the nearest +, route pies show the configured amount and the live value, and parent modulation (modulating a route's amount) has its own pies, rings and colours.

  • More of KURV is automatable from your DAW, including unison and modulator controls such as an LFO driving another modulator's SMOOTH. Every existing automation lane keeps its identity.

  • Filter graphs show the real sound. Scream, driven ladders, every Nonlinear character and phaser notches are measured through the actual filter and drawn smoothly at any editor size. The cutoff handle sits on the curve.

  • VA at 1x is flat to 18 kHz and aliases less than the old 2x on warped shapes. Oscillators are no longer EQ'd, so every source sounds exactly as generated. 1x adds no latency, and 2x adds 19 samples instead of 33.

Faster

  • Much lower CPU. A held single note uses about 60% fewer instructions than in 0.6.51, and 32 notes about 80% fewer. Since then, every sounding callback has dropped by roughly another 1,000-1,200 instructions and idle by about 16%, all with bit-identical output. Heavy patches spread voices across up to four CPU cores, and the fastest code for your CPU (SSE4.1, AVX2 or AVX-512) is picked at startup.

  • Saving a project no longer re-encodes unchanged synth state. In REAPER, saving a maximal dense patch drops from about 1.2 s to about 0.11 s, and a maximal compressible patch from about 144 ms to about 4 ms.

  • Modulating additive operators, additive pitch and Ripple SPEED costs about the same as leaving them static. The spectral operators cost about a tenth of what they did, and Modal Bank is 3-7x cheaper.

  • Much less memory. Identical Spectral Tables and resynthesis sources are shared between slots and plugin instances, filter and additive memory is only reserved for what the patch uses, the init patch is about 60 MiB smaller per instance, and recalling large Spectral Tables no longer holds duplicate copies.

  • A much lighter editor. An idle editor no longer redraws and uses about 0.1% CPU, a settled editor allocates nothing on quiet frames, scrolling and dragging allocate far less, offscreen cards stop rebuilding, and fast parameter drags no longer lag in Bitwig or other hosts.

  • Idle background threads sleep until there is work, and CPU, level and LFO telemetry pause while no editor is watching.

Fixed

  • Clicks follow the double-click timing exactly. Double-clicking a curve adds a point, and a third click no longer removes it. Toggling edit mode with + no longer counts as a double-click on the pie, a pie removed by double-click stays removed, and dragging from a newly created pie draws a single cable instead of two.

  • Large Spectral Table projects save and recall losslessly in CLAP and VST3.

  • The editor opens again in Bitwig and other hosts on Wayland desktops.

  • Changing or modulating an additive pitch no longer causes CPU spikes or dropouts, and fast additive edits are no longer occasionally lost.

  • Modal Bank is audible again, PHASE BLUR affects the sound, and the clean diode ladder stays stable under fast cutoff modulation.

  • Legato and mono play correctly: overlapping notes keep their envelopes and LFO phase, and returning to a held note restores its pressure, volume and pan.

  • Spectral tables and Grain controls take part in undo/redo, and deleting an oscillator frees its memory safely.

  • Saving and reloading a project in CLAP hosts no longer lets stale automation overwrite the recalled values.

  • Short Grain recordings play correctly, group header buttons stay inside their header at narrow widths, and many smaller fixes to modulation display, keyboard navigation and drag precision.

macOS · 0.6.86 · Windows · 0.6.86 · Linux · 0.6.86

KURVbeta

0.6.08

3 new · 1 better · 1 faster · 1 fixed

New

  • New AUTO modulation accuracy, the default for new instances: LFOs, envelopes and macros update every 8 samples (about a third less CPU on heavily modulated patches), and it switches to sample-accurate whenever an oscillator modulates something. Saved patches keep their setting.

  • Choose modulation accuracy yourself: 64, 32, 16, 8, 4, 2 or 1 samples between updates.

  • Drawn waveforms accept every spectral and filter operator, like the built-in shapes, and are anti-aliased so high notes stay clean.

Better

  • Redesigned oscillator, filter and LFO cards with larger graphs, compact control rows, faster editing and F1 help.

Faster

  • Much lower CPU overall: additive operators are precomputed, drawn waveforms and grain windows are cached, single-voice oscillators and odd unison counts render in SIMD, and the DSP picks the fastest code for your CPU at startup.

Fixed

  • Many fixes to LFO timing, envelopes, modulation amounts and Sample, Grain and Resynth playback.

macOS · 0.6.08 · Windows · 0.6.08 · Linux · 0.6.08

KIKstable

1.0.3

10 better

Better

  • Settings hug their content, using shared type, spacing and corner tokens; constrained bodies scroll with square clipping.

  • Native folder browsing for WAV exports and presets.

  • Correct Linux modifier/lock state for case, shifted punctuation and #.

  • Rename commits on Enter or click outside; Escape cancels only the edit. Presets have rename and delete controls.

  • Theme-aware waveform edges, curve lines, handles and radial actions.

  • Curve hover shows frequency between knots with an intrinsically measured readout.

  • Supplied KIK mark and a compact Drag WAV control.

  • Shared MUI buttons center their labels; nested popup anchors settle within the same frame.

  • Dragged kicks use persistent, immutable WAVs that stay independent between plugin instances and concurrent exports.

  • Drag requests now report queue and native transfer failures, allow one attempt per gesture, and hand their validated waveform thumbnail to the shared native drag adapter.

macOS · 1.0.3 · Windows · 1.0.3 · Linux · 1.0.3

KURVbeta

0.5.09

70 new · 59 better · 30 faster · 28 fixed

New

  • Switch the main Additive graph between editable partials and a read-only waveform view. Returning to partials preserves selection, spacing and curve edits.

  • KURV now plays through the rebuilt synth engine, rather than the old per-voice renderer. The modular patch, audio-rate routing and source operators share one playback architecture. [History C001](docs/releases/0.5.4-full-history/claims.md#c001).

  • Compile the patch into a playback program with an ordered module chain for each group and a concrete destination for each modulation route. [History C002](docs/releases/0.5.4-full-history/claims.md#c002).

  • Keep MIDI notes, velocity, pitch bend, glide and per-note expression in one note layer, instead of creating a separate note voice for each group. [History C004](docs/releases/0.5.4-full-history/claims.md#c004).

  • Replace the old editor rendering path with MUI's retained Vello Hybrid GPU runtime. This is a new graphics stack, not a skin over the previous editor. [History C008](docs/releases/0.5.4-full-history/claims.md#c008).

  • Show sampled CPU load and the active voice count in the editor header. [History C031](docs/releases/0.5.4-full-history/claims.md#c031).

  • Build patches from up to eight groups, with shared budgets of 32 oscillator slots, 32 filter slots and 32 auxiliary modules. [History C038](docs/releases/0.5.4-full-history/claims.md#c038).

  • Give groups their own ordered audio module chain, amplitude envelope, output gain, pan and output-pair routing. [History C039](docs/releases/0.5.4-full-history/claims.md#c039).

  • Allow audio-rate modulation to travel backward and across groups. Resolve playback order from the oscillator dependency graph rather than card order alone. [History C041](docs/releases/0.5.4-full-history/claims.md#c041).

  • Handle cyclic audio-rate routing explicitly: a backward edge inside a feedback cycle reads the previous sample rather than requiring an impossible ordering. [History C042](docs/releases/0.5.4-full-history/claims.md#c042).

  • Keep compatible structural modulation in the block renderer, including buffered VA routes, instead of falling back for the entire patch. [History C043](docs/releases/0.5.4-full-history/claims.md#c043).

  • Keep source-native operators attached to the source they process, while audio filters and effects remain in the group's audio chain. [History C044](docs/releases/0.5.4-full-history/claims.md#c044).

  • Organize additive processing into Pitch, Amp, Phase and Stereo lanes, with ordered fallback for older operator chains. [History C045](docs/releases/0.5.4-full-history/claims.md#c045).

  • Let additive amplitude lanes combine with Multiply, Maximum, Minimum, Add or Average rather than imposing one blend rule on every layer. [History C046](docs/releases/0.5.4-full-history/claims.md#c046).

  • Rebuild modulation around a shared domain model for graph editing, route legality, values and live state rather than editor-specific routing plumbing. [History C048](docs/releases/0.5.4-full-history/claims.md#c048).

  • Shape a modulation route with a remap curve before it reaches the destination. [History C049](docs/releases/0.5.4-full-history/claims.md#c049).

  • Multiply one route by another source to control its depth, allowing nested modulation rather than only additive destination offsets. [History C050](docs/releases/0.5.4-full-history/claims.md#c050).

  • Use compact source ports and destination pies for direct assignment and depth editing, with feedback for the current source and valid targets. [History C051](docs/releases/0.5.4-full-history/claims.md#c051).

  • Make source Rate a real modulation destination, including parent routes, instead of only allowing the source to modulate other modules. [History C058](docs/releases/0.5.4-full-history/claims.md#c058).

  • Add note-gated Sustain, Loop Point and Loop Hold LFO modes, alongside the existing free, retriggered and one-shot behaviors. [History C060](docs/releases/0.5.4-full-history/claims.md#c060).

  • Offer rate modes in Hertz, milliseconds and key-tracked frequency, with note-gate transitions controlling the loop markers. [History C061](docs/releases/0.5.4-full-history/claims.md#c061).

  • Shape random modulation through the editable response curve instead of limiting randomness to a fixed distribution. [History C062](docs/releases/0.5.4-full-history/claims.md#c062).

  • Use a 16-step gate source with per-step probabilities for rhythmic modulation. [History C063](docs/releases/0.5.4-full-history/claims.md#c063).

  • Extend the shared curve editor with editable segment behavior, selection and a reusable curve library. [History C064](docs/releases/0.5.4-full-history/claims.md#c064).

  • Keep performance sources available for macros, buttons, key tracking, velocity, pressure and timbre, alongside LFO/envelope modulation and the XY performance inputs. [History C066](docs/releases/0.5.4-full-history/claims.md#c066).

  • Retain the procedural virtual-analog foundation: canonical shapes and custom curves are evaluated by the oscillator rather than being a fixed sampled waveform bank. [History C070](docs/releases/0.5.4-full-history/claims.md#c070).

  • Draw and morph VA tables, import source data and keep editable table frames as part of the oscillator state. [History C071](docs/releases/0.5.4-full-history/claims.md#c071).

  • Define custom VA shapes with waveform expressions as well as drawn curves, using the shared expression compiler. [History C072](docs/releases/0.5.4-full-history/claims.md#c072).

  • Give each compatible oscillator its own unison count, detune range, distribution, jitter, width, alignment and pan-shape controls. [History C075](docs/releases/0.5.4-full-history/claims.md#c075).

  • Add PULSE phase processing and Offset while retiring the obsolete VA pulse/warp control arrangement. [History C077](docs/releases/0.5.4-full-history/claims.md#c077).

  • Unify Phase Bend shapes and allow a custom editable phase map rather than a separate fixed mode for every bend shape. [History C078](docs/releases/0.5.4-full-history/claims.md#c078).

  • Retain VA Prism phase processing using the instrument's own analytic periodic-source implementation. [History C079](docs/releases/0.5.4-full-history/claims.md#c079).

  • Retain continuous procedural Noise as an oscillator variant in the same group, automation and source-routing system as VA. [History C082](docs/releases/0.5.4-full-history/claims.md#c082).

  • Shape Noise with Level, Pan, Tilt, Gaps and Stereo, including burst-like gaps rather than a second oscillator type. [History C084](docs/releases/0.5.4-full-history/claims.md#c084).

  • Start new Additive oscillators with editable harmonics, while retaining a full-band procedural Wide Saw source for compatible older patches. [History C086](docs/releases/0.5.4-full-history/claims.md#c086).

  • Convert Wide Saw to editable partials and add an operator from the picker in one edit. [History C087](docs/releases/0.5.4-full-history/claims.md#c087).

  • Use an imported spectral table as an additive source and scan its frames through the common table system. [History C088](docs/releases/0.5.4-full-history/claims.md#c088).

  • Consolidate overlapping new-operator choices into Spectral Filter, Partial Shape, Stereo Shape and Partial Variation, while keeping legacy serialized operators available to old sessions. [History C089](docs/releases/0.5.4-full-history/claims.md#c089).

  • Draw a spectral filter response and use familiar low-pass, high-pass and tilt shapes without replacing the additive partial engine. [History C090](docs/releases/0.5.4-full-history/claims.md#c090).

  • Shape partial amplitudes with curve-based families that include contrast, blur, remap, gate, limit and other retained alterants. [History C091](docs/releases/0.5.4-full-history/claims.md#c091).

  • Make Stereo Shape Width alter the generated harmonic spread, while preserving the existing default sound. [History C092](docs/releases/0.5.4-full-history/claims.md#c092).

  • Add a frequency target to Ripple: the editable curve can bend partial pitch in semitones as well as shape amplitude. [History C093](docs/releases/0.5.4-full-history/claims.md#c093).

  • Add Prism Add and Prism Multiply as independent additive pitch operators with editable maps and common placement/routing. [History C095](docs/releases/0.5.4-full-history/claims.md#c095).

  • Keep Sample/Resynth and Grain in the shared oscillator contract, preserve imported source audio and prepare pitch/spectral analysis off the audio thread. Settled direct-sample playback reads its prepared band-limited source rather than running analysis during playback. [History C106](docs/releases/0.5.4-full-history/claims.md#c106).

  • Play Grain through a bounded, preallocated scheduler, with prepared pitch targeting and controlled grain lifetimes. [History C107](docs/releases/0.5.4-full-history/claims.md#c107).

  • Make Grain Speed scan through the source in the selected direction while preserving legacy behavior through the Scan state. [History C109](docs/releases/0.5.4-full-history/claims.md#c109).

  • Play spectral tables in Grain and improve frame scanning with a 64-frame prepared cache. [History C110](docs/releases/0.5.4-full-history/claims.md#c110).

  • Edit spectral tables from the Grain card instead of treating them as an invisible import artifact. [History C111](docs/releases/0.5.4-full-history/claims.md#c111).

  • Share immutable spectral tables across Grain, Additive and resonator features, and retain the table data in presets. [History C112](docs/releases/0.5.4-full-history/claims.md#c112).

  • Build spectral tables from analyzed audio and image data on worker/editor threads, within explicit frame and memory budgets. [History C113](docs/releases/0.5.4-full-history/claims.md#c113).

  • Capture a dedicated host sidechain into spectral tables rather than confusing the capture input with the instrument's output. [History C114](docs/releases/0.5.4-full-history/claims.md#c114).

  • Use worker-baked Rich PAD spectra for periodic playback, including prepared unison playback, without audio-thread FFT analysis. [History C115](docs/releases/0.5.4-full-history/claims.md#c115).

  • Add Spectral Loop resynthesis with a prepared harmonic loop bank spanning 16 roots and four snapshots, with playback crossfades rather than live analysis. [History C116](docs/releases/0.5.4-full-history/claims.md#c116).

  • Add a four-stage Diode Ladder low-pass filter with diode-like stage saturation, shared filter controls and editor support. [History C121](docs/releases/0.5.4-full-history/claims.md#c121).

  • Add FilterTable: prepare a minimum-phase, 64-tap FIR filter from a VA table and play it through the audio filter chain. [History C122](docs/releases/0.5.4-full-history/claims.md#c122).

  • Add a bounded ModalBank resonator for spectral/modal response, with prepared mode storage rather than an unbounded per-note allocation. [History C125](docs/releases/0.5.4-full-history/claims.md#c125).

  • Keep audio filters, analytic VA filters, spectral transforms and phase warps as distinct processing families. The audio family retains SVF, Phaser, Scream, Object and ModalBank alongside Diode Ladder and FilterTable, rather than presenting every operator as the same kind of filter. [History C128](docs/releases/0.5.4-full-history/claims.md#c128).

  • Retain source-aware VA low-pass, high-pass, comb and smoothing operators that evaluate the periodic source analytically. [History C129](docs/releases/0.5.4-full-history/claims.md#c129).

  • Retain spectral processing families including harmonic filtering, Tilt, Disperse and Random, using the source/operator chain's compatibility rules. [History C130](docs/releases/0.5.4-full-history/claims.md#c130).

  • Use a drawable distortion transfer curve with Amount, Multiply, skew and Mix, prepared from the same curve the editor shows. [History C131](docs/releases/0.5.4-full-history/claims.md#c131).

  • Add an ordered global effects rack after group mixing and before master gain, separate from each group's source and filter chain. [History C135](docs/releases/0.5.4-full-history/claims.md#c135).

  • Add master Delay and Reverb modules with their own controls and dry/wet balance. [History C136](docs/releases/0.5.4-full-history/claims.md#c136).

  • Add master Chorus, Phaser and Flanger modules for modulation effects after the group mix. [History C137](docs/releases/0.5.4-full-history/claims.md#c137).

  • Add master EQ, Distortion and Compressor modules in the same reorderable rack. [History C138](docs/releases/0.5.4-full-history/claims.md#c138).

  • Expose master effect controls to host automation and modulation using stable effect-kind identities; re-adding an effect returns to its existing host slot. [History C140](docs/releases/0.5.4-full-history/claims.md#c140).

  • Repair legacy preset migration and loading on the rebuilt engine instead of silently dropping incompatible state. [History C142](docs/releases/0.5.4-full-history/claims.md#c142).

  • Provide a full preset workflow in the MUI editor: browse, filter, sort, favorite, audition, save, import, export and delete user presets. [History C145](docs/releases/0.5.4-full-history/claims.md#c145).

  • Scan additional preset folders, including shared or cloud-library locations, from the editor's preset settings. [History C148](docs/releases/0.5.4-full-history/claims.md#c148).

  • Retain the Everything factory patch as a dense demonstration of multiple module kinds, sources and routing rather than counting it as a new DSP engine. [History C151](docs/releases/0.5.4-full-history/claims.md#c151).

  • Offer REPORT A BUG from Settings, opening the public issue tracker with instrument/build context. [History C153](docs/releases/0.5.4-full-history/claims.md#c153).

Better

  • Draw the first editor frame on the CPU while the shared GPU context initializes in the background, with paced device recovery and CPU rendering on OpenGL-only Linux.

  • Show Grain's reported live readers with the chosen envelope and source positions. Requested overlap and the eight-reader limit are displayed separately, with the preview identifying its selected voice.

  • Keep ordinary playback in small blocks; only connected feedback cycles need sample-by-sample rendering inside their cycle. [History C003](docs/releases/0.5.4-full-history/claims.md#c003).

  • Use one oscillator-control catalog for the editor, host automation, musical ranges and value formatting, so the same control means the same thing throughout the instrument. [History C005](docs/releases/0.5.4-full-history/claims.md#c005).

  • Use one placement and connection system for source operators; each source engine supplies its own processing rather than duplicating the whole operator workflow. [History C006](docs/releases/0.5.4-full-history/claims.md#c006).

  • Make the MUI editor the only product frontend. The old egui and GPUI reference frontends are no longer selectable product editors. [History C007](docs/releases/0.5.4-full-history/claims.md#c007).

  • Move border and contour rendering fixes into upstream MUI and remove the downstream patch-replay arrangement. [History C010](docs/releases/0.5.4-full-history/claims.md#c010).

  • Use MUI and its host bridge as upstream Git dependencies rather than shipping a private, uncommitted editor checkout. [History C011](docs/releases/0.5.4-full-history/claims.md#c011).

  • Separate the shared editor model from frontend rendering, keeping patch editing, persistence and parameter binding independent of the retired UI toolkits. [History C012](docs/releases/0.5.4-full-history/claims.md#c012).

  • Integrate MUI's native window/input bridge, including the Windows keyboard-capture policy used by the editor. [History C015](docs/releases/0.5.4-full-history/claims.md#c015).

  • Use editor-parented native Linux file choosers. Cancel pending dialogs when the editor closes and finish owned dialog workers before unload. [History C017](docs/releases/0.5.4-full-history/claims.md#c017).

  • Rebuild the workspace around a fluid, resizable MUI layout with connected group headers, source cards and operator surfaces. [History C021](docs/releases/0.5.4-full-history/claims.md#c021).

  • Give oscillator cards a narrow identity rail and contiguous waveform, unison and pan panels, with the waveform as the main editing surface. [History C022](docs/releases/0.5.4-full-history/claims.md#c022).

  • Make group identity and routing clearer with consistent headers, output readouts, rulers and categorized insertion menus. [History C023](docs/releases/0.5.4-full-history/claims.md#c023).

  • Redesign operator cards around their actual controls and useful previews instead of unrelated decorative surfaces. [History C024](docs/releases/0.5.4-full-history/claims.md#c024).

  • Reorder modules through real card/title drags with explicit drag feedback, rather than treating the waveform or source-routing port as a reorder grip. [History C025](docs/releases/0.5.4-full-history/claims.md#c025).

  • Show concise musical values and units on bound generator controls, and expose matching text to CLAP and VST3 hosts. [History C029](docs/releases/0.5.4-full-history/claims.md#c029).

  • Identify the build in the masthead, not just the version number, so development and packaged builds can be distinguished. [History C030](docs/releases/0.5.4-full-history/claims.md#c030).

  • Use a right-side settings drawer with click-away and Escape dismissal instead of the earlier welded reveal. [History C032](docs/releases/0.5.4-full-history/claims.md#c032).

  • Open the native color picker inline below its swatch and group settings into appearance, audio and account-related controls. [History C033](docs/releases/0.5.4-full-history/claims.md#c033).

  • Make surface tint, contrast, accent mute, oscillator color, modulation cables, interface scale and resynth detail explicit settings. [History C034](docs/releases/0.5.4-full-history/claims.md#c034).

  • Use flat accent fills and restrained baselines for envelope and response plots rather than gradient decoration. [History C037](docs/releases/0.5.4-full-history/claims.md#c037).

  • Preserve a group's musical identity when it is reordered, instead of treating its new position as a different envelope or bus history. [History C040](docs/releases/0.5.4-full-history/claims.md#c040).

  • Apply post-group controls at host-frame boundaries and route shared group controls without unnecessary staging copies. [History C047](docs/releases/0.5.4-full-history/claims.md#c047).

  • Unify connection and routing gestures so the same pie interaction is used across oscillator, operator and parameter destinations. [History C055](docs/releases/0.5.4-full-history/claims.md#c055).

  • Use the same curve representation across waveform, LFO and response editing instead of maintaining unrelated curve systems. [History C065](docs/releases/0.5.4-full-history/claims.md#c065).

  • Support per-note pitch, pressure, volume, pan and timbre through the shared note-expression layer used by the host shell. [History C067](docs/releases/0.5.4-full-history/claims.md#c067).

  • Keep mono retrigger, legato and glide behavior in the new note engine, with bounded release and voice-stealing handling. [History C068](docs/releases/0.5.4-full-history/claims.md#c068).

  • Compile drawn waveforms into qualified shared-slope curves with derivative regularization, rather than shipping the rejected compiler experiments. [History C073](docs/releases/0.5.4-full-history/claims.md#c073).

  • Restore VA Vocode, Harmonic Stretch and Disperse processing up to the host Nyquist limit at 48 and 96 kHz instead of truncating the high harmonics. [History C076](docs/releases/0.5.4-full-history/claims.md#c076).

  • Keep Noise intrinsically single-lane and present it as a compact waveform-and-shaping card, without irrelevant pitch or unison controls. [History C083](docs/releases/0.5.4-full-history/claims.md#c083).

  • Give new Ripple operators zero starting speed, give Phase Bend useful starting depth and expose additive phase editing directly on operator cards. [History C094](docs/releases/0.5.4-full-history/claims.md#c094).

  • Expand additive unison to 1–16 lanes. Saved counts migrate, but old normalized DAW automation now addresses the wider range rather than the earlier 1–4 range. [History C096](docs/releases/0.5.4-full-history/claims.md#c096).

  • Keep persisted PCM from being normalized a second time when a stored source is restored. [History C108](docs/releases/0.5.4-full-history/claims.md#c108).

  • Present Grain, Rich and Spectral Loop as the visible Resynth algorithms. The old Sample algorithm remains a decoder compatibility value, not a newly advertised mode. [History C117](docs/releases/0.5.4-full-history/claims.md#c117).

  • Size prepared voice storage to the published source and avoid retaining unnecessary additive retirement state. [History C120](docs/releases/0.5.4-full-history/claims.md#c120).

  • Keep FilterTable's current product limit explicit: it addresses the first eight VA source slots, not all 32 oscillator slots, and its magnitude response is an approximation. [History C123](docs/releases/0.5.4-full-history/claims.md#c123).

  • Build FilterTable kernels on a worker and publish completed plans with clear, acknowledgement and failure handling rather than compiling kernels during audio playback. [History C124](docs/releases/0.5.4-full-history/claims.md#c124).

  • Keep ModalBank's mode state in a persistent SIMD-friendly layout rather than gathering and scattering each mode every sample. [History C126](docs/releases/0.5.4-full-history/claims.md#c126).

  • Persist distortion-curve edits with their module and publish prepared data only when the curve changes. [History C132](docs/releases/0.5.4-full-history/claims.md#c132).

  • Keep one processor per effect kind and preserve its audio state when the rack is reordered. [History C139](docs/releases/0.5.4-full-history/claims.md#c139).

  • Publish a fixed-size effects snapshot only when the edited rack generation changes, instead of having the audio thread read the locked editor document. [History C141](docs/releases/0.5.4-full-history/claims.md#c141).

  • Preserve the configured plugin identities, preset extension and legacy preset roots during the MOOSE host migration, with checked-in compatibility fixtures. [History C143](docs/releases/0.5.4-full-history/claims.md#c143).

  • Keep factory preset state intact in the host tooling rather than replacing the patch with default host-bank values. [History C144](docs/releases/0.5.4-full-history/claims.md#c144).

  • Keep keyboard auditions in view and retain the pre-audition patch so browsing can be dismissed without losing the original sound. [History C147](docs/releases/0.5.4-full-history/claims.md#c147).

  • Retain migration support for older KURV preset generations; the history appendix records the original external .kurv-to-.kurvy migrator separately from current loading behavior. [History C149](docs/releases/0.5.4-full-history/claims.md#c149).

  • Keep legacy additive variants and frozen host-bank numbering available while structural edits update the displayed names and hidden controls. [History C150](docs/releases/0.5.4-full-history/claims.md#c150).

  • Update the Matari-Access licensing integration alongside the host/editor migration rather than introducing a separate licensing system for each plugin format. [History C152](docs/releases/0.5.4-full-history/claims.md#c152).

  • Move CLAP, VST3 and standalone hosting to MOOSE and add the AU v2 integration for macOS. Format support in source is distinct from the artifacts actually published for a release. [History C154](docs/releases/0.5.4-full-history/claims.md#c154).

  • Share the same instrument, parameters, persistence and DSP between plugin formats and standalone instead of maintaining different synth implementations per host. [History C155](docs/releases/0.5.4-full-history/claims.md#c155).

  • Use a half-band decimator for two-times-oversampled group runs rather than the heavier generic path. [History C159](docs/releases/0.5.4-full-history/claims.md#c159).

  • Use four-times oversampling for offline rendering where the host provides an offline render mode. [History C160](docs/releases/0.5.4-full-history/claims.md#c160).

  • Provide a faster local edit/test loop and a focused operator-kernel harness; the engineering appendix retains the measured workloads and their limits. [History C164](docs/releases/0.5.4-full-history/claims.md#c164).

  • Use the workstation/shared CI controls and avoid duplicate CI executions for the same pull request. [History C165](docs/releases/0.5.4-full-history/claims.md#c165).

  • Update actual plugin build and packaging tooling to the MOOSE host stack, rather than treating an editor gallery as a plugin delivery. [History C166](docs/releases/0.5.4-full-history/claims.md#c166).

  • Keep three-platform release automation, verified archive metadata and manifest publication as an explicit delivery step separate from source integration. [History C167](docs/releases/0.5.4-full-history/claims.md#c167).

  • Retain signed/notarized macOS packaging tooling while distinguishing macOS trust status from unsigned Windows and non-applicable Linux signatures. [History C168](docs/releases/0.5.4-full-history/claims.md#c168).

  • Preserve the vendor DSP research archive, including negative results and bounded unknowns. Research about another synth is not a claim that KURV copies it or matches its performance. [History C169](docs/releases/0.5.4-full-history/claims.md#c169).

  • Retain the full optimization workstream ledger alongside the complete product history; documentation-only checkpoints and held trials are not counted as shipped features. [History C170](docs/releases/0.5.4-full-history/claims.md#c170).

Faster

  • Stop idle editor frame wakeups until the interface needs a repaint.

  • Borrow oscillator settings when seeding notes instead of copying the configuration bank, while preserving the current phase position.

  • Reuse clean retained graphics tiles and adapt larger redraws to a bounded tile cache, with whole-scene retention for oversized windows in the integrated MUI runtime. [History C009](docs/releases/0.5.4-full-history/claims.md#c009).

  • Coalesce consecutive hover samples before rebuilding the UI while preserving drag, button, keyboard, wheel and modifier-event ordering. [History C013](docs/releases/0.5.4-full-history/claims.md#c013).

  • Observe editor animation on native window ticks so visual updates follow the window's display cadence. [History C016](docs/releases/0.5.4-full-history/claims.md#c016).

  • Cache previews and static geometry by the inputs that change them, including source revisions and wavetable snapshots, instead of rebuilding unchanged plots on every frame. [History C019](docs/releases/0.5.4-full-history/claims.md#c019).

  • Reuse port wells, module-tab outlines and envelope/gate geometry during animated editor frames. [History C020](docs/releases/0.5.4-full-history/claims.md#c020).

  • Avoid recompiling the modulation program merely because an overflow route's depth changes. [History C057](docs/releases/0.5.4-full-history/claims.md#c057).

  • Reuse exact matching LFO-rate evaluations and copy only active source state during playback, rather than evaluating or copying inactive source slots. [History C069](docs/releases/0.5.4-full-history/claims.md#c069).

  • Keep portable four-lane and eight-lane VA curve rendering paths for supported platforms and dense unison playback. [History C074](docs/releases/0.5.4-full-history/claims.md#c074).

  • Keep settled stacks of compatible phase operators on the VA block-rendering path. [History C080](docs/releases/0.5.4-full-history/claims.md#c080).

  • Replay exact Noise cycles under SYNC, including the default stereo case, instead of repeating identical source work after master resets. [History C085](docs/releases/0.5.4-full-history/claims.md#c085).

  • Share prepared harmonic banks across unison lanes and bake eligible settled operator chains into them. [History C097](docs/releases/0.5.4-full-history/claims.md#c097).

  • Keep eligible static additive banks active under SYNC and common-phase operators instead of discarding the prepared bank unnecessarily. [History C098](docs/releases/0.5.4-full-history/claims.md#c098).

  • Reuse pitch-independent additive operator targets while FM changes the played pitch. [History C099](docs/releases/0.5.4-full-history/claims.md#c099).

  • Cull eligible Converge packets and batch consecutive unmasked Shift operators during audio-rate playback. [History C100](docs/releases/0.5.4-full-history/claims.md#c100).

  • Reuse repeated additive spectral-filter and Comb responses while preserving each operator's own wet amount and modulation. [History C101](docs/releases/0.5.4-full-history/claims.md#c101).

  • Bound slow Ripple and Barberpole update work and use direct partial rendering when that is cheaper than rebuilding a harmonic cache. [History C102](docs/releases/0.5.4-full-history/claims.md#c102).

  • Admit only qualified static amplitude-response reuse; moving controls return to the full renderer instead of borrowing an invalid cached response. [History C103](docs/releases/0.5.4-full-history/claims.md#c103).

  • Omit unused additive pitch workspace for plans that do not need direct pitch processing, while preserving plan handover. [History C104](docs/releases/0.5.4-full-history/claims.md#c104).

  • Share immutable prepared Prism maps across voices instead of rebuilding matching maps separately for every voice. [History C105](docs/releases/0.5.4-full-history/claims.md#c105).

  • Skip PCM reads that are discarded at full spectral blend while keeping grain timing and the return to PCM intact. [History C119](docs/releases/0.5.4-full-history/claims.md#c119).

  • Reuse stable FilterTable kernels, improve moving-kernel interpolation and borrow prepared coefficient banks rather than copying them into every processing path. [History C133](docs/releases/0.5.4-full-history/claims.md#c133).

  • Reuse FilterTable cutoff-log magnitudes and consumed FFT scratch across the four contrast kernels. This is a worker-preparation improvement, not a claimed audio-callback speed multiplier. [History C134](docs/releases/0.5.4-full-history/claims.md#c134).

  • Build only visible preset rows for large libraries and keep stable row identities through filtering and sorting. [History C146](docs/releases/0.5.4-full-history/claims.md#c146).

  • Keep direct host events off the configuration gate when they do not require rebuilding the patch. [History C157](docs/releases/0.5.4-full-history/claims.md#c157).

  • Reduce settled idle control-plane work by skipping unnecessary configuration and playback work when the patch and voice state are unchanged. [History C158](docs/releases/0.5.4-full-history/claims.md#c158).

  • Block-render known generator-driven Level/Pan routes and mixed VA FM/gain paths when their sources are available, instead of reverting the whole voice to scalar playback. [History C161](docs/releases/0.5.4-full-history/claims.md#c161).

  • Remove unused spectral banks and dead inline oscillator storage from the retained voice services, while preserving the active new-engine path. [History C162](docs/releases/0.5.4-full-history/claims.md#c162).

  • Borrow program keys for unchanged-patch comparisons instead of constructing throwaway candidate copies. [History C163](docs/releases/0.5.4-full-history/claims.md#c163).

Fixed

  • Preserve CLAP note lifecycle events when the framework note tracker fills, including exact note IDs, wildcard releases and choke events. This addresses stuck playback notes reported in Bitwig, and overlapping notes release their own voices.

  • Use one Additive graph for partials or waveform, removing the duplicate upper waveform and its unused mesh cache. Partial editing, selection, spacing, curve drafts and keyboard view switching are preserved.

  • Heap-own the existing Noise replay frame pools so host initialization does not carry their large arrays through stack temporaries. Reset retains the prepared allocation.

  • Adopt upstream X11 mapping, Windows hook and DLL-lifetime, and macOS layer/focus fixes in the native editor bridge.

  • Select the DX12 shader compiler for the actual Windows target: static DXC on supported MSVC builds, automatic compiler selection on GNU and ARM64.

  • Build macOS Audio Unit bundles with the target-aware packaging tool, matching the framework revision used by KURV.

  • Recognize Windows' built-in accessibility library when verifying CLAP and VST3 packages.

  • Align the Windows graphics allocator with the renderer’s Direct3D bindings so the Windows plugin build compiles.

  • At neutral settings, Custom distortion follows the authored transfer curve without an extra offset or normalization. Asymmetric and constant curves retain their authored zero-input output.

  • A module-title click opens its type menu without starting a reorder. Dragging starts after movement, and copied filters retain exact settings when their host values have not changed.

  • Keep additive operator modulation sample-accurate when a generator supplies either the child route or its parent, using the shared routing legality rules.

  • Release publication stops if the existing download manifest cannot be read, preserving other products and requiring verified archives for every platform.

  • Repair native editor scaling and macOS editor compilation during the MUI migration. [History C014](docs/releases/0.5.4-full-history/claims.md#c014).

  • Keep the Windows GPU allocation dependencies compatible with the editor renderer. [History C018](docs/releases/0.5.4-full-history/claims.md#c018).

  • Recover header styling, keep compact readouts from overlapping and correct oscillator panel geometry. [History C026](docs/releases/0.5.4-full-history/claims.md#c026).

  • Keep fast parameter drags at the released value without delayed editor echoes or snap-back from host synchronization. [History C027](docs/releases/0.5.4-full-history/claims.md#c027).

  • Correct knob stepping and compact control interaction so gestures follow their declared musical ranges. [History C028](docs/releases/0.5.4-full-history/claims.md#c028).

  • Paint menus and popups above floating routing pies so a modulation handle cannot show through a color picker. [History C035](docs/releases/0.5.4-full-history/claims.md#c035).

  • Keep the VA table menu readable at the minimum editor width by shortening DISTRIBUTE FRAMES EVENLY to DISTRIBUTE FRAMES. [History C036](docs/releases/0.5.4-full-history/claims.md#c036).

  • Keep route pies in floating overlays without shifting the underlying parameter layout. [History C052](docs/releases/0.5.4-full-history/claims.md#c052).

  • Give an armed parent-modulation drag ownership of the nested depth ring instead of editing the child route by mistake. [History C053](docs/releases/0.5.4-full-history/claims.md#c053).

  • Reject self-parent modulation and keep assignment controls accessible above existing routes. [History C054](docs/releases/0.5.4-full-history/claims.md#c054).

  • Cancel modulation gestures consistently on Escape and focus loss rather than leaving an invisible assignment active. [History C056](docs/releases/0.5.4-full-history/claims.md#c056).

  • Treat Keytrack, Velocity, Pressure and Timbre as finite response curves: the maximum Velocity endpoint stays at one instead of wrapping to zero. [History C059](docs/releases/0.5.4-full-history/claims.md#c059).

  • Keep oscillator table and source state coherent when presets or host state are reloaded after structural editing. [History C081](docs/releases/0.5.4-full-history/claims.md#c081).

  • Read live Grain telemetry from the actual synth engine rather than the silent legacy voice container, so playing Grain voices can drive the editor graph. [History C118](docs/releases/0.5.4-full-history/claims.md#c118).

  • Restore routed ModalBank Slope and CurveComb Morph audio after rejecting candidates that changed those routes. [History C127](docs/releases/0.5.4-full-history/claims.md#c127).

  • Keep the DSP state behind a heap handle and reuse preallocated oscillator configuration storage, avoiding oversized host-thread stack copies during processing and state handling. [History C156](docs/releases/0.5.4-full-history/claims.md#c156).

macOS · 0.5.09 · Windows · 0.5.09 · Linux · 0.5.09

KIKstable

1.0.0

6 better

Better

  • Rebuild the low end and noise from your sample.

  • Draw pitch and volume curves. Add grit with distortion.

  • Keep a short part of the original attack.

  • Hover a preset and press Space to hear it. A line follows the sound across its waveform.

  • Try every feature for 28 days. No key or card needed to start.

  • Existing projects, presets and trial dates remain compatible.

Linux · 1.0.0

KIKstable

0.1.2

5 better

Better

  • Hovering a preset gives its editor keyboard focus.

  • Space previews the card under the pointer immediately.

  • Its waveform playhead follows preview playback.

  • Text editing and inactive license screens keep their normal shortcuts.

  • Existing KIKK projects, presets and trial dates remain compatible.

Linux · 0.1.2

KIKstable

0.1.1

4 better

Better

  • Renamed KIKK to KIK.

  • Start a full 28-day trial in the plugin. No key or card required.

  • Frosted activation backdrop.

  • Shorter activation screen.

Linux · 0.1.1

KURVbeta

0.5.07

70 new · 58 better · 29 faster · 23 fixed

New

  • Switch the main Additive graph between editable partials and a read-only waveform view. Returning to partials preserves selection, spacing and curve edits.

  • KURV now plays through the rebuilt synth engine, rather than the old per-voice renderer. The modular patch, audio-rate routing and source operators share one playback architecture. [History C001](docs/releases/0.5.4-full-history/claims.md#c001).

  • Compile the patch into a playback program with an ordered module chain for each group and a concrete destination for each modulation route. [History C002](docs/releases/0.5.4-full-history/claims.md#c002).

  • Keep MIDI notes, velocity, pitch bend, glide and per-note expression in one note layer, instead of creating a separate note voice for each group. [History C004](docs/releases/0.5.4-full-history/claims.md#c004).

  • Replace the old editor rendering path with MUI's retained Vello Hybrid GPU runtime. This is a new graphics stack, not a skin over the previous editor. [History C008](docs/releases/0.5.4-full-history/claims.md#c008).

  • Show sampled CPU load and the active voice count in the editor header. [History C031](docs/releases/0.5.4-full-history/claims.md#c031).

  • Build patches from up to eight groups, with shared budgets of 32 oscillator slots, 32 filter slots and 32 auxiliary modules. [History C038](docs/releases/0.5.4-full-history/claims.md#c038).

  • Give groups their own ordered audio module chain, amplitude envelope, output gain, pan and output-pair routing. [History C039](docs/releases/0.5.4-full-history/claims.md#c039).

  • Allow audio-rate modulation to travel backward and across groups. Resolve playback order from the oscillator dependency graph rather than card order alone. [History C041](docs/releases/0.5.4-full-history/claims.md#c041).

  • Handle cyclic audio-rate routing explicitly: a backward edge inside a feedback cycle reads the previous sample rather than requiring an impossible ordering. [History C042](docs/releases/0.5.4-full-history/claims.md#c042).

  • Keep compatible structural modulation in the block renderer, including buffered VA routes, instead of falling back for the entire patch. [History C043](docs/releases/0.5.4-full-history/claims.md#c043).

  • Keep source-native operators attached to the source they process, while audio filters and effects remain in the group's audio chain. [History C044](docs/releases/0.5.4-full-history/claims.md#c044).

  • Organize additive processing into Pitch, Amp, Phase and Stereo lanes, with ordered fallback for older operator chains. [History C045](docs/releases/0.5.4-full-history/claims.md#c045).

  • Let additive amplitude lanes combine with Multiply, Maximum, Minimum, Add or Average rather than imposing one blend rule on every layer. [History C046](docs/releases/0.5.4-full-history/claims.md#c046).

  • Rebuild modulation around a shared domain model for graph editing, route legality, values and live state rather than editor-specific routing plumbing. [History C048](docs/releases/0.5.4-full-history/claims.md#c048).

  • Shape a modulation route with a remap curve before it reaches the destination. [History C049](docs/releases/0.5.4-full-history/claims.md#c049).

  • Multiply one route by another source to control its depth, allowing nested modulation rather than only additive destination offsets. [History C050](docs/releases/0.5.4-full-history/claims.md#c050).

  • Use compact source ports and destination pies for direct assignment and depth editing, with feedback for the current source and valid targets. [History C051](docs/releases/0.5.4-full-history/claims.md#c051).

  • Make source Rate a real modulation destination, including parent routes, instead of only allowing the source to modulate other modules. [History C058](docs/releases/0.5.4-full-history/claims.md#c058).

  • Add note-gated Sustain, Loop Point and Loop Hold LFO modes, alongside the existing free, retriggered and one-shot behaviors. [History C060](docs/releases/0.5.4-full-history/claims.md#c060).

  • Offer rate modes in Hertz, milliseconds and key-tracked frequency, with note-gate transitions controlling the loop markers. [History C061](docs/releases/0.5.4-full-history/claims.md#c061).

  • Shape random modulation through the editable response curve instead of limiting randomness to a fixed distribution. [History C062](docs/releases/0.5.4-full-history/claims.md#c062).

  • Use a 16-step gate source with per-step probabilities for rhythmic modulation. [History C063](docs/releases/0.5.4-full-history/claims.md#c063).

  • Extend the shared curve editor with editable segment behavior, selection and a reusable curve library. [History C064](docs/releases/0.5.4-full-history/claims.md#c064).

  • Keep performance sources available for macros, buttons, key tracking, velocity, pressure and timbre, alongside LFO/envelope modulation and the XY performance inputs. [History C066](docs/releases/0.5.4-full-history/claims.md#c066).

  • Retain the procedural virtual-analog foundation: canonical shapes and custom curves are evaluated by the oscillator rather than being a fixed sampled waveform bank. [History C070](docs/releases/0.5.4-full-history/claims.md#c070).

  • Draw and morph VA tables, import source data and keep editable table frames as part of the oscillator state. [History C071](docs/releases/0.5.4-full-history/claims.md#c071).

  • Define custom VA shapes with waveform expressions as well as drawn curves, using the shared expression compiler. [History C072](docs/releases/0.5.4-full-history/claims.md#c072).

  • Give each compatible oscillator its own unison count, detune range, distribution, jitter, width, alignment and pan-shape controls. [History C075](docs/releases/0.5.4-full-history/claims.md#c075).

  • Add PULSE phase processing and Offset while retiring the obsolete VA pulse/warp control arrangement. [History C077](docs/releases/0.5.4-full-history/claims.md#c077).

  • Unify Phase Bend shapes and allow a custom editable phase map rather than a separate fixed mode for every bend shape. [History C078](docs/releases/0.5.4-full-history/claims.md#c078).

  • Retain VA Prism phase processing using the instrument's own analytic periodic-source implementation. [History C079](docs/releases/0.5.4-full-history/claims.md#c079).

  • Retain continuous procedural Noise as an oscillator variant in the same group, automation and source-routing system as VA. [History C082](docs/releases/0.5.4-full-history/claims.md#c082).

  • Shape Noise with Level, Pan, Tilt, Gaps and Stereo, including burst-like gaps rather than a second oscillator type. [History C084](docs/releases/0.5.4-full-history/claims.md#c084).

  • Start new Additive oscillators with editable harmonics, while retaining a full-band procedural Wide Saw source for compatible older patches. [History C086](docs/releases/0.5.4-full-history/claims.md#c086).

  • Convert Wide Saw to editable partials and add an operator from the picker in one edit. [History C087](docs/releases/0.5.4-full-history/claims.md#c087).

  • Use an imported spectral table as an additive source and scan its frames through the common table system. [History C088](docs/releases/0.5.4-full-history/claims.md#c088).

  • Consolidate overlapping new-operator choices into Spectral Filter, Partial Shape, Stereo Shape and Partial Variation, while keeping legacy serialized operators available to old sessions. [History C089](docs/releases/0.5.4-full-history/claims.md#c089).

  • Draw a spectral filter response and use familiar low-pass, high-pass and tilt shapes without replacing the additive partial engine. [History C090](docs/releases/0.5.4-full-history/claims.md#c090).

  • Shape partial amplitudes with curve-based families that include contrast, blur, remap, gate, limit and other retained alterants. [History C091](docs/releases/0.5.4-full-history/claims.md#c091).

  • Make Stereo Shape Width alter the generated harmonic spread, while preserving the existing default sound. [History C092](docs/releases/0.5.4-full-history/claims.md#c092).

  • Add a frequency target to Ripple: the editable curve can bend partial pitch in semitones as well as shape amplitude. [History C093](docs/releases/0.5.4-full-history/claims.md#c093).

  • Add Prism Add and Prism Multiply as independent additive pitch operators with editable maps and common placement/routing. [History C095](docs/releases/0.5.4-full-history/claims.md#c095).

  • Keep Sample/Resynth and Grain in the shared oscillator contract, preserve imported source audio and prepare pitch/spectral analysis off the audio thread. Settled direct-sample playback reads its prepared band-limited source rather than running analysis during playback. [History C106](docs/releases/0.5.4-full-history/claims.md#c106).

  • Play Grain through a bounded, preallocated scheduler, with prepared pitch targeting and controlled grain lifetimes. [History C107](docs/releases/0.5.4-full-history/claims.md#c107).

  • Make Grain Speed scan through the source in the selected direction while preserving legacy behavior through the Scan state. [History C109](docs/releases/0.5.4-full-history/claims.md#c109).

  • Play spectral tables in Grain and improve frame scanning with a 64-frame prepared cache. [History C110](docs/releases/0.5.4-full-history/claims.md#c110).

  • Edit spectral tables from the Grain card instead of treating them as an invisible import artifact. [History C111](docs/releases/0.5.4-full-history/claims.md#c111).

  • Share immutable spectral tables across Grain, Additive and resonator features, and retain the table data in presets. [History C112](docs/releases/0.5.4-full-history/claims.md#c112).

  • Build spectral tables from analyzed audio and image data on worker/editor threads, within explicit frame and memory budgets. [History C113](docs/releases/0.5.4-full-history/claims.md#c113).

  • Capture a dedicated host sidechain into spectral tables rather than confusing the capture input with the instrument's output. [History C114](docs/releases/0.5.4-full-history/claims.md#c114).

  • Use worker-baked Rich PAD spectra for periodic playback, including prepared unison playback, without audio-thread FFT analysis. [History C115](docs/releases/0.5.4-full-history/claims.md#c115).

  • Add Spectral Loop resynthesis with a prepared harmonic loop bank spanning 16 roots and four snapshots, with playback crossfades rather than live analysis. [History C116](docs/releases/0.5.4-full-history/claims.md#c116).

  • Add a four-stage Diode Ladder low-pass filter with diode-like stage saturation, shared filter controls and editor support. [History C121](docs/releases/0.5.4-full-history/claims.md#c121).

  • Add FilterTable: prepare a minimum-phase, 64-tap FIR filter from a VA table and play it through the audio filter chain. [History C122](docs/releases/0.5.4-full-history/claims.md#c122).

  • Add a bounded ModalBank resonator for spectral/modal response, with prepared mode storage rather than an unbounded per-note allocation. [History C125](docs/releases/0.5.4-full-history/claims.md#c125).

  • Keep audio filters, analytic VA filters, spectral transforms and phase warps as distinct processing families. The audio family retains SVF, Phaser, Scream, Object and ModalBank alongside Diode Ladder and FilterTable, rather than presenting every operator as the same kind of filter. [History C128](docs/releases/0.5.4-full-history/claims.md#c128).

  • Retain source-aware VA low-pass, high-pass, comb and smoothing operators that evaluate the periodic source analytically. [History C129](docs/releases/0.5.4-full-history/claims.md#c129).

  • Retain spectral processing families including harmonic filtering, Tilt, Disperse and Random, using the source/operator chain's compatibility rules. [History C130](docs/releases/0.5.4-full-history/claims.md#c130).

  • Use a drawable distortion transfer curve with Amount, Multiply, skew and Mix, prepared from the same curve the editor shows. [History C131](docs/releases/0.5.4-full-history/claims.md#c131).

  • Add an ordered global effects rack after group mixing and before master gain, separate from each group's source and filter chain. [History C135](docs/releases/0.5.4-full-history/claims.md#c135).

  • Add master Delay and Reverb modules with their own controls and dry/wet balance. [History C136](docs/releases/0.5.4-full-history/claims.md#c136).

  • Add master Chorus, Phaser and Flanger modules for modulation effects after the group mix. [History C137](docs/releases/0.5.4-full-history/claims.md#c137).

  • Add master EQ, Distortion and Compressor modules in the same reorderable rack. [History C138](docs/releases/0.5.4-full-history/claims.md#c138).

  • Expose master effect controls to host automation and modulation using stable effect-kind identities; re-adding an effect returns to its existing host slot. [History C140](docs/releases/0.5.4-full-history/claims.md#c140).

  • Repair legacy preset migration and loading on the rebuilt engine instead of silently dropping incompatible state. [History C142](docs/releases/0.5.4-full-history/claims.md#c142).

  • Provide a full preset workflow in the MUI editor: browse, filter, sort, favorite, audition, save, import, export and delete user presets. [History C145](docs/releases/0.5.4-full-history/claims.md#c145).

  • Scan additional preset folders, including shared or cloud-library locations, from the editor's preset settings. [History C148](docs/releases/0.5.4-full-history/claims.md#c148).

  • Retain the Everything factory patch as a dense demonstration of multiple module kinds, sources and routing rather than counting it as a new DSP engine. [History C151](docs/releases/0.5.4-full-history/claims.md#c151).

  • Offer REPORT A BUG from Settings, opening the public issue tracker with instrument/build context. [History C153](docs/releases/0.5.4-full-history/claims.md#c153).

Better

  • Show Grain's reported live readers with the chosen envelope and source positions. Requested overlap and the eight-reader limit are displayed separately, with the preview identifying its selected voice.

  • Keep ordinary playback in small blocks; only connected feedback cycles need sample-by-sample rendering inside their cycle. [History C003](docs/releases/0.5.4-full-history/claims.md#c003).

  • Use one oscillator-control catalog for the editor, host automation, musical ranges and value formatting, so the same control means the same thing throughout the instrument. [History C005](docs/releases/0.5.4-full-history/claims.md#c005).

  • Use one placement and connection system for source operators; each source engine supplies its own processing rather than duplicating the whole operator workflow. [History C006](docs/releases/0.5.4-full-history/claims.md#c006).

  • Make the MUI editor the only product frontend. The old egui and GPUI reference frontends are no longer selectable product editors. [History C007](docs/releases/0.5.4-full-history/claims.md#c007).

  • Move border and contour rendering fixes into upstream MUI and remove the downstream patch-replay arrangement. [History C010](docs/releases/0.5.4-full-history/claims.md#c010).

  • Use MUI and its host bridge as upstream Git dependencies rather than shipping a private, uncommitted editor checkout. [History C011](docs/releases/0.5.4-full-history/claims.md#c011).

  • Separate the shared editor model from frontend rendering, keeping patch editing, persistence and parameter binding independent of the retired UI toolkits. [History C012](docs/releases/0.5.4-full-history/claims.md#c012).

  • Integrate MUI's native window/input bridge, including the Windows keyboard-capture policy used by the editor. [History C015](docs/releases/0.5.4-full-history/claims.md#c015).

  • Use editor-parented native Linux file choosers. Cancel pending dialogs when the editor closes and finish owned dialog workers before unload. [History C017](docs/releases/0.5.4-full-history/claims.md#c017).

  • Rebuild the workspace around a fluid, resizable MUI layout with connected group headers, source cards and operator surfaces. [History C021](docs/releases/0.5.4-full-history/claims.md#c021).

  • Give oscillator cards a narrow identity rail and contiguous waveform, unison and pan panels, with the waveform as the main editing surface. [History C022](docs/releases/0.5.4-full-history/claims.md#c022).

  • Make group identity and routing clearer with consistent headers, output readouts, rulers and categorized insertion menus. [History C023](docs/releases/0.5.4-full-history/claims.md#c023).

  • Redesign operator cards around their actual controls and useful previews instead of unrelated decorative surfaces. [History C024](docs/releases/0.5.4-full-history/claims.md#c024).

  • Reorder modules through real card/title drags with explicit drag feedback, rather than treating the waveform or source-routing port as a reorder grip. [History C025](docs/releases/0.5.4-full-history/claims.md#c025).

  • Show concise musical values and units on bound generator controls, and expose matching text to CLAP and VST3 hosts. [History C029](docs/releases/0.5.4-full-history/claims.md#c029).

  • Identify the build in the masthead, not just the version number, so development and packaged builds can be distinguished. [History C030](docs/releases/0.5.4-full-history/claims.md#c030).

  • Use a right-side settings drawer with click-away and Escape dismissal instead of the earlier welded reveal. [History C032](docs/releases/0.5.4-full-history/claims.md#c032).

  • Open the native color picker inline below its swatch and group settings into appearance, audio and account-related controls. [History C033](docs/releases/0.5.4-full-history/claims.md#c033).

  • Make surface tint, contrast, accent mute, oscillator color, modulation cables, interface scale and resynth detail explicit settings. [History C034](docs/releases/0.5.4-full-history/claims.md#c034).

  • Use flat accent fills and restrained baselines for envelope and response plots rather than gradient decoration. [History C037](docs/releases/0.5.4-full-history/claims.md#c037).

  • Preserve a group's musical identity when it is reordered, instead of treating its new position as a different envelope or bus history. [History C040](docs/releases/0.5.4-full-history/claims.md#c040).

  • Apply post-group controls at host-frame boundaries and route shared group controls without unnecessary staging copies. [History C047](docs/releases/0.5.4-full-history/claims.md#c047).

  • Unify connection and routing gestures so the same pie interaction is used across oscillator, operator and parameter destinations. [History C055](docs/releases/0.5.4-full-history/claims.md#c055).

  • Use the same curve representation across waveform, LFO and response editing instead of maintaining unrelated curve systems. [History C065](docs/releases/0.5.4-full-history/claims.md#c065).

  • Support per-note pitch, pressure, volume, pan and timbre through the shared note-expression layer used by the host shell. [History C067](docs/releases/0.5.4-full-history/claims.md#c067).

  • Keep mono retrigger, legato and glide behavior in the new note engine, with bounded release and voice-stealing handling. [History C068](docs/releases/0.5.4-full-history/claims.md#c068).

  • Compile drawn waveforms into qualified shared-slope curves with derivative regularization, rather than shipping the rejected compiler experiments. [History C073](docs/releases/0.5.4-full-history/claims.md#c073).

  • Restore VA Vocode, Harmonic Stretch and Disperse processing up to the host Nyquist limit at 48 and 96 kHz instead of truncating the high harmonics. [History C076](docs/releases/0.5.4-full-history/claims.md#c076).

  • Keep Noise intrinsically single-lane and present it as a compact waveform-and-shaping card, without irrelevant pitch or unison controls. [History C083](docs/releases/0.5.4-full-history/claims.md#c083).

  • Give new Ripple operators zero starting speed, give Phase Bend useful starting depth and expose additive phase editing directly on operator cards. [History C094](docs/releases/0.5.4-full-history/claims.md#c094).

  • Expand additive unison to 1–16 lanes. Saved counts migrate, but old normalized DAW automation now addresses the wider range rather than the earlier 1–4 range. [History C096](docs/releases/0.5.4-full-history/claims.md#c096).

  • Keep persisted PCM from being normalized a second time when a stored source is restored. [History C108](docs/releases/0.5.4-full-history/claims.md#c108).

  • Present Grain, Rich and Spectral Loop as the visible Resynth algorithms. The old Sample algorithm remains a decoder compatibility value, not a newly advertised mode. [History C117](docs/releases/0.5.4-full-history/claims.md#c117).

  • Size prepared voice storage to the published source and avoid retaining unnecessary additive retirement state. [History C120](docs/releases/0.5.4-full-history/claims.md#c120).

  • Keep FilterTable's current product limit explicit: it addresses the first eight VA source slots, not all 32 oscillator slots, and its magnitude response is an approximation. [History C123](docs/releases/0.5.4-full-history/claims.md#c123).

  • Build FilterTable kernels on a worker and publish completed plans with clear, acknowledgement and failure handling rather than compiling kernels during audio playback. [History C124](docs/releases/0.5.4-full-history/claims.md#c124).

  • Keep ModalBank's mode state in a persistent SIMD-friendly layout rather than gathering and scattering each mode every sample. [History C126](docs/releases/0.5.4-full-history/claims.md#c126).

  • Persist distortion-curve edits with their module and publish prepared data only when the curve changes. [History C132](docs/releases/0.5.4-full-history/claims.md#c132).

  • Keep one processor per effect kind and preserve its audio state when the rack is reordered. [History C139](docs/releases/0.5.4-full-history/claims.md#c139).

  • Publish a fixed-size effects snapshot only when the edited rack generation changes, instead of having the audio thread read the locked editor document. [History C141](docs/releases/0.5.4-full-history/claims.md#c141).

  • Preserve the configured plugin identities, preset extension and legacy preset roots during the MOOSE host migration, with checked-in compatibility fixtures. [History C143](docs/releases/0.5.4-full-history/claims.md#c143).

  • Keep factory preset state intact in the host tooling rather than replacing the patch with default host-bank values. [History C144](docs/releases/0.5.4-full-history/claims.md#c144).

  • Keep keyboard auditions in view and retain the pre-audition patch so browsing can be dismissed without losing the original sound. [History C147](docs/releases/0.5.4-full-history/claims.md#c147).

  • Retain migration support for older KURV preset generations; the history appendix records the original external .kurv-to-.kurvy migrator separately from current loading behavior. [History C149](docs/releases/0.5.4-full-history/claims.md#c149).

  • Keep legacy additive variants and frozen host-bank numbering available while structural edits update the displayed names and hidden controls. [History C150](docs/releases/0.5.4-full-history/claims.md#c150).

  • Update the Matari-Access licensing integration alongside the host/editor migration rather than introducing a separate licensing system for each plugin format. [History C152](docs/releases/0.5.4-full-history/claims.md#c152).

  • Move CLAP, VST3 and standalone hosting to MOOSE and add the AU v2 integration for macOS. Format support in source is distinct from the artifacts actually published for a release. [History C154](docs/releases/0.5.4-full-history/claims.md#c154).

  • Share the same instrument, parameters, persistence and DSP between plugin formats and standalone instead of maintaining different synth implementations per host. [History C155](docs/releases/0.5.4-full-history/claims.md#c155).

  • Use a half-band decimator for two-times-oversampled group runs rather than the heavier generic path. [History C159](docs/releases/0.5.4-full-history/claims.md#c159).

  • Use four-times oversampling for offline rendering where the host provides an offline render mode. [History C160](docs/releases/0.5.4-full-history/claims.md#c160).

  • Provide a faster local edit/test loop and a focused operator-kernel harness; the engineering appendix retains the measured workloads and their limits. [History C164](docs/releases/0.5.4-full-history/claims.md#c164).

  • Use the workstation/shared CI controls and avoid duplicate CI executions for the same pull request. [History C165](docs/releases/0.5.4-full-history/claims.md#c165).

  • Update actual plugin build and packaging tooling to the MOOSE host stack, rather than treating an editor gallery as a plugin delivery. [History C166](docs/releases/0.5.4-full-history/claims.md#c166).

  • Keep three-platform release automation, verified archive metadata and manifest publication as an explicit delivery step separate from source integration. [History C167](docs/releases/0.5.4-full-history/claims.md#c167).

  • Retain signed/notarized macOS packaging tooling while distinguishing macOS trust status from unsigned Windows and non-applicable Linux signatures. [History C168](docs/releases/0.5.4-full-history/claims.md#c168).

  • Preserve the vendor DSP research archive, including negative results and bounded unknowns. Research about another synth is not a claim that KURV copies it or matches its performance. [History C169](docs/releases/0.5.4-full-history/claims.md#c169).

  • Retain the full optimization workstream ledger alongside the complete product history; documentation-only checkpoints and held trials are not counted as shipped features. [History C170](docs/releases/0.5.4-full-history/claims.md#c170).

Faster

  • Borrow oscillator settings when seeding notes instead of copying the configuration bank, while preserving the current phase position.

  • Reuse clean retained graphics tiles and adapt larger redraws to a bounded tile cache, with whole-scene retention for oversized windows in the integrated MUI runtime. [History C009](docs/releases/0.5.4-full-history/claims.md#c009).

  • Coalesce consecutive hover samples before rebuilding the UI while preserving drag, button, keyboard, wheel and modifier-event ordering. [History C013](docs/releases/0.5.4-full-history/claims.md#c013).

  • Observe editor animation on native window ticks so visual updates follow the window's display cadence. [History C016](docs/releases/0.5.4-full-history/claims.md#c016).

  • Cache previews and static geometry by the inputs that change them, including source revisions and wavetable snapshots, instead of rebuilding unchanged plots on every frame. [History C019](docs/releases/0.5.4-full-history/claims.md#c019).

  • Reuse port wells, module-tab outlines and envelope/gate geometry during animated editor frames. [History C020](docs/releases/0.5.4-full-history/claims.md#c020).

  • Avoid recompiling the modulation program merely because an overflow route's depth changes. [History C057](docs/releases/0.5.4-full-history/claims.md#c057).

  • Reuse exact matching LFO-rate evaluations and copy only active source state during playback, rather than evaluating or copying inactive source slots. [History C069](docs/releases/0.5.4-full-history/claims.md#c069).

  • Keep portable four-lane and eight-lane VA curve rendering paths for supported platforms and dense unison playback. [History C074](docs/releases/0.5.4-full-history/claims.md#c074).

  • Keep settled stacks of compatible phase operators on the VA block-rendering path. [History C080](docs/releases/0.5.4-full-history/claims.md#c080).

  • Replay exact Noise cycles under SYNC, including the default stereo case, instead of repeating identical source work after master resets. [History C085](docs/releases/0.5.4-full-history/claims.md#c085).

  • Share prepared harmonic banks across unison lanes and bake eligible settled operator chains into them. [History C097](docs/releases/0.5.4-full-history/claims.md#c097).

  • Keep eligible static additive banks active under SYNC and common-phase operators instead of discarding the prepared bank unnecessarily. [History C098](docs/releases/0.5.4-full-history/claims.md#c098).

  • Reuse pitch-independent additive operator targets while FM changes the played pitch. [History C099](docs/releases/0.5.4-full-history/claims.md#c099).

  • Cull eligible Converge packets and batch consecutive unmasked Shift operators during audio-rate playback. [History C100](docs/releases/0.5.4-full-history/claims.md#c100).

  • Reuse repeated additive spectral-filter and Comb responses while preserving each operator's own wet amount and modulation. [History C101](docs/releases/0.5.4-full-history/claims.md#c101).

  • Bound slow Ripple and Barberpole update work and use direct partial rendering when that is cheaper than rebuilding a harmonic cache. [History C102](docs/releases/0.5.4-full-history/claims.md#c102).

  • Admit only qualified static amplitude-response reuse; moving controls return to the full renderer instead of borrowing an invalid cached response. [History C103](docs/releases/0.5.4-full-history/claims.md#c103).

  • Omit unused additive pitch workspace for plans that do not need direct pitch processing, while preserving plan handover. [History C104](docs/releases/0.5.4-full-history/claims.md#c104).

  • Share immutable prepared Prism maps across voices instead of rebuilding matching maps separately for every voice. [History C105](docs/releases/0.5.4-full-history/claims.md#c105).

  • Skip PCM reads that are discarded at full spectral blend while keeping grain timing and the return to PCM intact. [History C119](docs/releases/0.5.4-full-history/claims.md#c119).

  • Reuse stable FilterTable kernels, improve moving-kernel interpolation and borrow prepared coefficient banks rather than copying them into every processing path. [History C133](docs/releases/0.5.4-full-history/claims.md#c133).

  • Reuse FilterTable cutoff-log magnitudes and consumed FFT scratch across the four contrast kernels. This is a worker-preparation improvement, not a claimed audio-callback speed multiplier. [History C134](docs/releases/0.5.4-full-history/claims.md#c134).

  • Build only visible preset rows for large libraries and keep stable row identities through filtering and sorting. [History C146](docs/releases/0.5.4-full-history/claims.md#c146).

  • Keep direct host events off the configuration gate when they do not require rebuilding the patch. [History C157](docs/releases/0.5.4-full-history/claims.md#c157).

  • Reduce settled idle control-plane work by skipping unnecessary configuration and playback work when the patch and voice state are unchanged. [History C158](docs/releases/0.5.4-full-history/claims.md#c158).

  • Block-render known generator-driven Level/Pan routes and mixed VA FM/gain paths when their sources are available, instead of reverting the whole voice to scalar playback. [History C161](docs/releases/0.5.4-full-history/claims.md#c161).

  • Remove unused spectral banks and dead inline oscillator storage from the retained voice services, while preserving the active new-engine path. [History C162](docs/releases/0.5.4-full-history/claims.md#c162).

  • Borrow program keys for unchanged-patch comparisons instead of constructing throwaway candidate copies. [History C163](docs/releases/0.5.4-full-history/claims.md#c163).

Fixed

  • Build macOS Audio Unit bundles with the target-aware packaging tool, matching the framework revision used by KURV.

  • Recognize Windows' built-in accessibility library when verifying CLAP and VST3 packages.

  • Align the Windows graphics allocator with the renderer’s Direct3D bindings so the Windows plugin build compiles.

  • At neutral settings, Custom distortion follows the authored transfer curve without an extra offset or normalization. Asymmetric and constant curves retain their authored zero-input output.

  • A module-title click opens its type menu without starting a reorder. Dragging starts after movement, and copied filters retain exact settings when their host values have not changed.

  • Keep additive operator modulation sample-accurate when a generator supplies either the child route or its parent, using the shared routing legality rules.

  • Release publication stops if the existing download manifest cannot be read, preserving other products and requiring verified archives for every platform.

  • Repair native editor scaling and macOS editor compilation during the MUI migration. [History C014](docs/releases/0.5.4-full-history/claims.md#c014).

  • Keep the Windows GPU allocation dependencies compatible with the editor renderer. [History C018](docs/releases/0.5.4-full-history/claims.md#c018).

  • Recover header styling, keep compact readouts from overlapping and correct oscillator panel geometry. [History C026](docs/releases/0.5.4-full-history/claims.md#c026).

  • Keep fast parameter drags at the released value without delayed editor echoes or snap-back from host synchronization. [History C027](docs/releases/0.5.4-full-history/claims.md#c027).

  • Correct knob stepping and compact control interaction so gestures follow their declared musical ranges. [History C028](docs/releases/0.5.4-full-history/claims.md#c028).

  • Paint menus and popups above floating routing pies so a modulation handle cannot show through a color picker. [History C035](docs/releases/0.5.4-full-history/claims.md#c035).

  • Keep the VA table menu readable at the minimum editor width by shortening DISTRIBUTE FRAMES EVENLY to DISTRIBUTE FRAMES. [History C036](docs/releases/0.5.4-full-history/claims.md#c036).

  • Keep route pies in floating overlays without shifting the underlying parameter layout. [History C052](docs/releases/0.5.4-full-history/claims.md#c052).

  • Give an armed parent-modulation drag ownership of the nested depth ring instead of editing the child route by mistake. [History C053](docs/releases/0.5.4-full-history/claims.md#c053).

  • Reject self-parent modulation and keep assignment controls accessible above existing routes. [History C054](docs/releases/0.5.4-full-history/claims.md#c054).

  • Cancel modulation gestures consistently on Escape and focus loss rather than leaving an invisible assignment active. [History C056](docs/releases/0.5.4-full-history/claims.md#c056).

  • Treat Keytrack, Velocity, Pressure and Timbre as finite response curves: the maximum Velocity endpoint stays at one instead of wrapping to zero. [History C059](docs/releases/0.5.4-full-history/claims.md#c059).

  • Keep oscillator table and source state coherent when presets or host state are reloaded after structural editing. [History C081](docs/releases/0.5.4-full-history/claims.md#c081).

  • Read live Grain telemetry from the actual synth engine rather than the silent legacy voice container, so playing Grain voices can drive the editor graph. [History C118](docs/releases/0.5.4-full-history/claims.md#c118).

  • Restore routed ModalBank Slope and CurveComb Morph audio after rejecting candidates that changed those routes. [History C127](docs/releases/0.5.4-full-history/claims.md#c127).

  • Keep the DSP state behind a heap handle and reuse preallocated oscillator configuration storage, avoiding oversized host-thread stack copies during processing and state handling. [History C156](docs/releases/0.5.4-full-history/claims.md#c156).

macOS · 0.5.07 · Windows · 0.5.07 · Linux · 0.5.07

RELAYstable

0.5.0

4 better

Better

  • Two RELAY plugins in one room now send and receive audio over LAN or WebRTC. Browser listeners hear both plugins together.

  • Browser listeners can name themselves. The sharing plugin shows each browser microphone and plugin return in a compact strip with its own gain, mute and level meter.

  • Separate input and output MUTE controls dim their meters when active. THRU controls whether local DAW input passes to the plugin output.

  • The plugin opens at a more readable size and waits for a pause or Enter before reconnecting after room or password edits.

macOS · 0.5.0 · Windows · 0.5.0 · Linux · 0.5.0

RELAYstable

0.4.2

2 better

Better

  • The browser listen page shows the optional room password before joining and sends it with the first join request.

  • The RELAY product page now matches the plugin's Signal look, with clearer downloads, comparison and help sections.

macOS · 0.4.2 · Windows · 0.4.2 · Linux · 0.4.2

RELAYstable

0.4.1

3 better

Better

  • Browser listeners have separate talkback gain sliders in the plugin's mic view, with live indicators and a 0 dB reset.

  • The plugin and browser use Matari's Signal look: lime, Silkscreen headings, Departure Mono readouts and the animated dot and chevrons. The plugin's changelog and settings panel offers a saved Standard appearance too.

  • The listen page keeps a compact content-sized card when mic mode and the room roster are visible in Firefox.

macOS · 0.4.1 · Windows · 0.4.1 · Linux · 0.4.1

RELAYstable

0.4.0

7 better

Better

  • Built on MOOSE 7 (Matari's truce fork) instead of truce 6.3. Sessions and presets from 0.2.0 load unchanged.

  • An Audio Unit (AU v2) for macOS, in the same installer as the CLAP and VST3.

  • The meters and link status keep moving while the editor is left alone.

  • The editor scales with the window when you resize it.

  • The about panel's notes no longer overlap, and scroll when they don't fit.

  • Typing in the room and password fields works on Windows.

  • Includes MOOSE's archive and audio input routing fixes.

macOS · 0.4.0 · Windows · 0.4.0 · Linux · 0.4.0

RELAYstable

0.2.0

9 better

Better

  • Rewritten from scratch: one small core, one plugin, one worker.

  • Internet rooms over WebRTC with Opus up to 510 kbps, adapting to the slowest listener under a ceiling you pick; lossless on a LAN.

  • Anyone can listen in a browser at relay.matari-audio.com/<room>, with their own volume.

  • Browser listeners can talk back with their mic; the plugin plays it and shows who is talking.

  • Nothing is sent over the internet during silence.

  • The buffer sizes itself to the network and resyncs in silence.

  • IN and OUT meters, each with its own fader.

  • The editor keeps its scale when reopened.

  • Windows, macOS (signed and notarized, Universal) and Linux.

macOS · 0.2.0 · Windows · 0.2.0 · Linux · 0.2.0

KORREKTbeta

0.20.2

2 better · 1 fixed

Better

  • The scope derives its added-peak tint from the selected theme and keeps it out of the red spectrum; monochrome themes use a neutral highlight.

  • VIOLET, white with a blue-violet accent, is the new default theme.

Fixed

  • Center-only headroom retargets use bounded crossfades across large swings and predicted dry-peak overshoots. The demo phrase no longer gains peak level at any Analysis quality.

macOS · 0.20.2 · Windows · 0.20.2 · Linux · 0.20.2

BUFFRstable

1.0.92

2 faster · 19 fixed

Recording that keeps going

Hosts misbehave. The take survives.

  • Fixed

    Recording no longer stalls when a host abandons an audio reader mid-callback. System Audio keeps recording while the host is away, and the problem is reported once in diagnostics.

  • Fixed

    Editing audio while BUFFR records can no longer, in rare cases, free a part of the recording that is still being written.

  • Fixed

    Crash-recovery saves can no longer lose the previous copy of a recording if a save fails partway, and leftovers from interrupted saves are cleaned up. If part of a long recording kept on disk can't be read back, BUFFR now shows Storage read failed instead of that audio silently going missing.

  • Fixed

    When a host sends larger audio blocks than it announced, System Audio keeps recording instead of dropping the block. Blocks that carry MIDI but no audio pass the MIDI through and no longer interrupt recording or freeze the meters. An invalid tempo or time signature from the host no longer breaks the metronome or bar grid.

  • Fixed

    On Linux, System Audio no longer risks corrupting its state when an app changes its stream format mid-capture, and a capture that is slow to stop no longer overlaps a second one that could garble the recording.

  • Fixed

    On Linux, global MIDI routing reconnects on its own once another app releases the controller, and closing BUFFR while routing starts takes a few seconds at most instead of up to 90.

MIDI and export values you can trust

What you export is what you played.

  • Fixed

    MIDI 2.0 values near zero now export near zero in MIDI 1 files instead of at about 61%. Sustain, program changes, and other on/off controls export exactly as recorded.

  • Fixed

    The piano roll and Smart Quantize pair note-ons and note-offs the same way, so notes on different ports or voices are no longer joined.

  • Fixed

    Imported MIDI files can no longer bring in out-of-range data, and grid snap no longer drifts over long sessions (about 14 ms by bar 1000).

  • Fixed

    Audio-to-MIDI previews play and seek before you keep any notes, and the controls make it clear which one keeps notes and which one clears the preview.

  • Fixed

    One invalid sample no longer makes Normalize silence the whole export, and Ride no longer gets stuck or produces garbage gain after invalid audio.

  • Fixed

    24-bit mono WAV exports with an odd number of frames include the padding byte that strict WAV readers require.

  • Fixed

    MP3, AAC, and Opus exports can no longer hang when the encoder prints a lot of diagnostics.

Steadier editor, lighter footprint

Fewer crashes, less busywork.

  • Fixed

    Dragging audio or MIDI out of the macOS standalone app works again. The first drag no longer flashes and fails, and a failed drag no longer blocks every later drag until BUFFR restarts.

  • Fixed

    Rare host crashes caused by invalid timeline, scrollbar, or accessibility values are fixed, and the MIDI lane no longer keeps redrawing after very long recordings.

  • Fixed

    Processed previews no longer stay unavailable after the audio changes during a render, and preview playback keeps working after several cancelled previews.

  • Fixed

    If undo or redo fails partway, BUFFR clears the edit history and says so instead of silently losing an entry.

  • Faster

    Dragging a slider no longer rewrites your preferences on every frame; changes save when you let go or after a short pause.

  • Faster

    The spectrogram reserves much less graphics memory, growing its drawing buffer as needed up to 8 MB instead of claiming 64 MB per display format up front, and export progress no longer piles up in memory while the editor is busy.

Crash reports

Better evidence when something goes wrong.

  • Fixed

    macOS crash summaries include the exception details and the original exception backtrace.

  • Fixed

    Crash reporting no longer misses a crash when the system has reused the crashed host's process number, damaged crash records are cleared, and on Linux the first BUFFR instance no longer waits on the system crash log before starting.

macOS · 1.0.92 · Windows · 1.0.92 · Linux · 1.0.92

KORREKTbeta

0.20.1

2 new

New

  • Punch above 50 % raises the weaker polarity to meet the stronger instead of stacking the peaks onto one side, so the wave hits hard both ways around the centre line. At 100 % and Fine, both polarities of a lopsided bass pulse rise 3.5 dB and a dense mix 0.8 dB; a 120 Hz voice evens out with its top 0.7 dB lower. Punch up to 50 % is unchanged.

  • The scope draws a smooth volume envelope instead of per-pixel peaks: grey past the amber is what the correction took away, a gradient from amber to green on top of it is what it added.

macOS · 0.20.1 · Windows · 0.20.1 · Linux · 0.20.1

KORREKTbeta

0.20.0

6 new · 1 better · 1 faster · 3 fixed

New

  • Rebuilds the engine as one continuously varying all-pass FIR. Each hop is transformed once; three realised filters give the exact output for every broadband rotation, θ glides per sample, and new band filters crossfade over one hop, so there is no block switching and no click at chunk edges.

  • Center holds θ at the minimum of a per-angle peak memory with a one-second half-life, matching the best fixed rotation on voice, beating it on half-wave material and staying within 0.2 dB of it on dense mixes.

  • Spectral steps sixteen ERB band phases along an FFT gradient and keeps only steps that lower the true peak. On a 120 Hz voice at Fine, peaks drop 3.5 dB against 0.9 dB for Center alone.

  • Punch is now a knob that sets where both stages steer the peaks, at the same level: 0 % as low as phase can take them (headroom), 50 % left where they were, 100 % as high as they go, harmonics lined up into harder hits. At Fine, peaks move −3.5 and +4.7 dB on a 120 Hz voice and −1.0 and +2.9 dB on a dense mix at 0 and 100 %.

  • The Center control hosts a scrolling scope of up to 16 s (4 s by default, scroll to zoom): one opaque, centred waveform in the accent colour over the input in grey, so the grey that shows is what the correction took away, a live peak-change readout, and one lane per Spectral band on the same time axis that lights up as that band turns. Both run to the rim of the dial, drawn one column per physical pixel from ¼ ms bins with anti-aliased edges; finished columns are cached, so each frame only sums new audio, and the editor paints at 60 Hz only while audio flows.

  • EMBER, charcoal with amber, is the new default theme.

Better

  • Analysis now sets real host latency, 21, 43, 85 or 171 ms at 48 kHz for Fast, Balanced, Fine and Ultra, and replaces the Engine, Timing, Adaptive and Lookahead parameters and the host meters.

Faster

  • Uses 0.5–0.9 % of one core for stereo at 48 kHz, against 1.2–1.6 % for the old worker-thread optimiser, with no allocation on the audio thread.

Fixed

  • The plugin only reports sleep once the output is silent, and the declared tail is exact, fixing clap-validator's sleep test.

  • Knob digits and strokes follow the window size instead of staying fixed at 465 and 1240 px, and keep their seven-segment readout.

  • Parameters no longer carry groups that VST3 hosts could not resolve, fixing the Steinberg validator's unit check.

macOS · 0.20.0 · Windows · 0.20.0 · Linux · 0.20.0

BUFFRstable

1.0.91

5 new · 5 better · 7 fixed

New

  • Audio-to-MIDI results are a source of their own. Detected notes get a diamond "Detected" row at the top of the MIDI channel sidebar, filtered independently of channels 1-16, so conversions no longer collide with recorded MIDI.

  • Audio-to-MIDI detects kick, snare, and closed hi-hat onsets on General MIDI drum channel 10; drum hits draw as short triangles in the MIDI lane.

  • Spectral view gains a Paint tool. Drag along a line in the spectrogram and BUFFR snaps the stroke to the nearest partial and adds the traced notes.

  • Detected notes draw noteGRABBER-style over the spectrogram as teal pitch bars beside a piano-key strip, and the MIDI lane's Detected row follows the audio lane's timeline instead of the MIDI lane's, so every detected note sits under the audio it came from.

  • Spectral view gains an A2Midi tool. The neural model analyses the audio selection, or the whole buffer, once in the background with no length cap, then note sensitivity, split sensitivity, and min length sliders re-decode it live so notes highlight the spectrogram in green and fill the MIDI lane's Detected row; Add commits them, and while the tool is on, Convert to MIDI and MIDI drag-out use the same settings. Viewing the Detected row on its own puts the MIDI lane on the audio timeline and grid, so detected notes zoom, snap, and play with the audio; All or any real channel keeps the MIDI lane's own grid. Turning on Paint or A2Midi selects the Detected row. Analysis and preview survive toggling the tool and only re-run when the audio changes; double-click a slider to reset it. The Detected row in the channel sidebar carries a sparkle icon, its lane no longer reports "No MIDI on selected channels" while detected notes are showing, and Space plays those notes from the visible window instead of counting silently from frame zero. Paint strokes snap to the spectral ridge under the pointer as you draw, skip anything below the spectrogram floor, and a tap in Paint mode no longer seeks the playhead.

Better

  • Audio-to-MIDI conversion adds only detected notes; the beat-grid kick and hi-hat track on MIDI channel 2 is gone, and the plugin is about 10 MB smaller.

  • New configurations start the spectral view at a 2048-point FFT; saved choices are preserved.

  • Documented that REAPER on Linux must run with GDK_BACKEND=x11: on a native Wayland GDK backend REAPER crashes inside its own window layer when any plugin editor opens.

  • When recording storage cannot be written at all, BUFFR now retries saving less often instead of every five seconds, and reports the folder it tried to write so the problem can be found; the same failure is no longer repeated in the log.

  • Reports and diagnostics now name the graphics adapter, backend, device type and driver that drew the interface, and whether GPU spectral analysis is active, so display and Spectral problems can be traced to the driver that caused them.

Fixed

  • macOS CLAP and VST3 plug-ins report the installed BUFFR version and their own bundle identifiers instead of a placeholder 1.0.0, so crash reports and Apple diagnostics name the release they came from.

  • macOS crash reports now carry the loaded image identifiers and addresses that a backtrace needs, and signed macOS builds keep their debug symbols, so a crash on macOS points at the code that caused it instead of an unrelated function.

  • On Retina Macs the plugin editor opens at the right size again. The VST3, AU, and CLAP editors were reporting their size in pixels where macOS hosts expect points, so REAPER and other hosts opened a double-sized window with the interface drawn at half scale in the bottom-left corner and refused to resize it.

  • Spectral GPU analysis now belongs to the editor that created it and to that plugin instance alone, so closing and reopening the editor (or running a second instance) can no longer hand background analysis a discarded graphics device.

  • The report window now comes to the front instead of opening behind Settings.

  • Opening several BUFFR panels at once on Linux no longer crashes the host. Each panel window registers itself with the system accessibility service, and a defect in that service's lookup code aborted the entire host application when two panels registered at the same time.

  • macOS asks for Screen & System Audio Recording as BUFFR itself, including inside a plugin host, instead of silently reusing whatever the host was granted. System Audio now reports itself as connected only once real audio arrives, so a capture that fails to start shows the reason it failed rather than flickering between connected and unavailable, and the permission guidance no longer disappears for good when you open System Settings: returning to BUFFR after granting permission restarts capture on its own.

macOS · 1.0.91 · Windows · 1.0.91 · Linux · 1.0.91

BUFFRpreview

1.0.90

5 better

Better

  • Rebuilt Settings around Input, Capture, Export, Appearance, and Performance, with License, Updates, Diagnostics, and Report inside one window. Stable accessible names for icon-only controls, consistent spacing, stronger headings, aligned icons, solid accents, readable slider values and FFT menus that close after selection, and compact native dialogs replace nested panels and uneven padding. Theme and spectral colors edit directly, save automatically, and reset to their original presets. Settings preserve valid saved choices across upgrades and merge changes between instances; new configurations default to icon-only toolbars, solid waveform fill, and two hours of history.

  • Added faster GPU spectral analysis and wavelet synchrosqueezing for clearer separation of nearby notes, plus GPU spectral selection where supported and CPU fallback. Faster parallel loading, reusable zoom detail, adaptive memory limits, Overview and Full detail modes, corrected frequency scaling and tile edges, stable selections, stronger narrow ridges, calibrated levels, and a wider Floor range improve analysis and display. Long recordings, compressed imports, processed previews, playback, exports, and undo use bounded storage; recovery survives plugin reloads, restores faster, and preserves unreadable data safely.

  • Improved recording and playback reliability: System Audio continues when the host stops processing, macOS capture handles formats and timing more reliably, and source changes and MIDI preview avoid interrupting other channels. Corrected quiet multichannel playback, true-peak normalization, streamed processing continuity, silent-range exports, Windows drag-and-drop, oversized host blocks, and shutdown behavior. Graphics setup, lost devices, Spectral reopening, and auxiliary-window commands recover more reliably, while background work avoids blocking recording.

  • Setup starts with activation, adds a final Make it yours step for theme, waveform, and spectrogram choices, and finishes with a three-second BUFFR-colored inward animation, animated logo, and reduced-motion support. Activate by key, start a trial, or use MuseHub in supported editions directly inside Setup or Settings. The License page shows a masked key, current device and active devices, with refresh and confirmed deactivation. Existing activations are preserved.

  • Preview is consistently named in updates and downloads, with installed and available release notes and scrollable history. Diagnostics show the complete available session log. Reports always include viewable diagnostics; the displayed snapshot is the one sent. Automatic crash reporting retains complete available incident evidence until delivery is confirmed, and more accurate graphics, memory, storage, and shutdown diagnostics improve troubleshooting.

macOS · 1.0.90 · Windows · 1.0.90 · Linux · 1.0.90

RELAYbeta

0.1.2

1 better

Better

  • Simplified editor and aligned responsive layout. Fixed CLAP state refresh, VST3 host interface discovery, and clipped rendering on resize. Windows and Linux CLAP/VST3 builds; Windows requires Microsoft Visual C++ 2015–2022 x64 runtime. Run the included Windows installer as administrator and restart Windows before scanning plugins.

Windows · 0.1.2 · Linux · 0.1.2

BUFFRstable

1.0.72

2 better · 1 faster · 2 fixed

Better

  • Audio and MIDI imports append cleanly with mixed sample-rate conversion, complete undo state, bounded multichannel disk use, visible progress, correct keyboard focus, and immediate waveforms; repeated exports reuse prepared files and remain reliable through Windows Explorer, asynchronous hosts, Wayland, XWayland, undo, cancellation, and editor closure.

  • Settings, Activity Log, Diagnostics, and Report panels are movable, resizable, scrollable, selectable, copyable, and accessible; reports retain bounded capture, renderer, Spectral, memory, import, and crash evidence, build IDs identify exact installs, damaged trials recover, and activation, support, and update downloads reject malformed responses.

Faster

  • Long recordings keep sealed audio on durable storage, release obsolete audio and Offline FX previews, bound waveform, Spectral, and MIDI memory plus multichannel undo disk use, and avoid repeated scans, scene copies, gradient work, idle redraws, and background-worker polling; Auto, Full, and Low Power modes adapt presentation cost to the machine.

Fixed

  • Native drag, resize, input, focus, modal, teardown, and late host callbacks no longer freeze, crash, abort, or retain destroyed editors; Baseview 0.3.2 improves CLAP, VST3, standalone, multi-instance macOS Metal, software-rendered Windows, embedded Linux, X11 parent detection, reopening, resizing, and display scaling.

  • System Audio follows device and host changes, survives uneven processing and recoverable interruptions, reports startup failures and underruns accurately, and guides macOS users to Screen Recording settings; standalone shutdown, shared MIDI routing, controller reconnection, per-note expression, and accessible MIDI activity are more reliable.

macOS · 1.0.72 · Windows · 1.0.72 · Linux · 1.0.72

BUFFRvizia

1.0.88

5 better

Better

  • BUFFR-V now ships as a separate experimental CLAP, VST3, and standalone download for Linux, Windows, and universal macOS, with its own plug-in identity and notarized macOS installer.

  • The experimental Vizia spectrogram now retains source tiles while the timeline moves and colors them on the GPU, removing the viewport-wide CPU recoloring that stalled playback and resizing.

  • Completed spectral analysis now redraws the Audio canvas immediately, and playback schedules spectrogram work ahead of the moving playhead instead of waiting for unrelated UI activity.

  • Spectrogram redraws now target the correct editor and stop cleanly when it closes, preventing stalled multi-instance views and redundant frame requests.

  • Partial spectral tiles no longer sample an empty neighboring column while recording or panning between analysis columns.

macOS · 1.0.88 · Windows · 1.0.88 · Linux · 1.0.88

BUFFRpreview

1.0.69

1 new · 15 better · 12 faster · 26 fixed

New

  • Auto, Full, and Low Power display modes now let BUFFR adapt to constrained machines while preserving the user's full-quality settings.

Better

  • Completed audio imports reveal the full appended waveform immediately, while the animated aurora keeps the lane visibly busy until the import finishes.

  • Audio imports now keep the waveform visible under an animated aurora until ready, block conflicting gestures during the handoff, and report the exact reason when a drag export cannot be prepared.

  • Timeline pan and vertical gain, frequency, and pitch controls now expose distinct values and actions to assistive technology.

  • Long recordings keep using conservative waveform summaries at zoom boundaries instead of redundantly rereading raw audio.

  • The editor stays idle when nothing changes, coalesces redraws during active work, and preserves native drag, accessibility, and graphics-recovery behavior.

  • Panel close buttons now expose their purpose to screen readers and desktop automation.

  • File-drop diagnostics now record background import progress so stalled imports can be identified without guessing whether the host accepted the drop.

  • Support reports include bounded current activity, correlate delayed crash artifacts more reliably, and finish background submissions safely before the host unloads BUFFR.

  • Auto, Full, and Low Power display modes now adapt to constrained, virtual, and software-rendered machines while preserving Full settings; Low Power uses a one-second passive refresh, a simple waveform, and disables Spectrogram and background Wet work, with performance controls available from FX.

  • Standalone closes without waiting for another audio callback, including before input starts and when JACK stops; MIDI activity is announced accessibly, linked inputs reconnect more reliably, and per-note expression stays attached to the correct repeated note; macOS crash reports retain memory-allocation evidence and support reports can be correlated anonymously.

  • Standalone closes without waiting for another audio callback; MIDI activity is announced accessibly, linked inputs reconnect more reliably, and per-note expression stays attached to the correct repeated note; macOS crash reports retain memory-allocation evidence and support reports can be correlated anonymously.

  • MIDI activity is announced accessibly, linked inputs reconnect more reliably, per-note expression stays attached to the correct repeated note, and Low Power bounds dense note and marker drawing; macOS crash reports retain memory-allocation evidence and support reports can be correlated anonymously.

  • macOS crash reports retain virtual-memory allocation and memory-summary evidence for diagnosis.

  • Crash reports can now be correlated with anonymous installation and system statistics without exposing raw hardware identifiers.

  • Right-clicking FX now opens performance, refresh-rate, Spectrogram resource, and background Wet controls.

Faster

  • Import undo history stores only channels containing retained audio instead of every negotiated host channel, greatly reducing temporary disk use in multichannel hosts.

  • Long recordings now keep sealed audio on durable storage instead of retaining the complete capture in memory; clearing, replacing, or changing Offline FX releases obsolete resident audio and waveform summaries.

  • Zoomed-out waveforms avoid repeated recording scans, scene copies, gradient work, and continuous transient redraws; Low Power bounds dense MIDI note, marker, and expression memory while long-session paging skips empty slots.

  • Zoomed-out waveforms avoid repeated recording scans, scene copies, gradient work, and continuous transient redraws; long-session paging skips empty slots, and background workers stop without idle polling delays.

  • Software-rendered editors now select Low Power automatically and limit passive live animations and waveform refresh without slowing direct interaction.

  • Zoomed-out waveforms avoid repeated scans, scene copies, and continuous onset redraws; long-session paging skips empty slots; background workers stop without idle polling delays.

  • Zoomed-out waveforms no longer rescan the visible recording for every drawn bucket.

  • Low Power uses a 30 FPS simple waveform, hides transient and fill work, disables background Wet preparation, and keeps Spectral processing inactive.

  • Waveform redraws now reuse display calculations, skip unused gradient work, and enforce the selected presentation rate for background-triggered frames.

  • Spectral processing now starts only when Spectral view is used, and switching back to Waveform releases its cached analysis.

  • Long recordings now keep sealed audio on durable storage instead of retaining the complete capture in memory, while preserving playback, waveform, effects, and export access.

  • Repeated Offline FX preview changes now release obsolete waveform summaries instead of accumulating display memory.

Fixed

  • Audio files with different sample rates are converted to the active timeline rate while importing, so repeated mixed-rate drops append, display, play, and export as one continuous buffer.

  • Timeline keyboard shortcuts keep working after clicking the audio or MIDI lane while text fields still retain keyboard input.

  • Export drags on Windows now keep their native thumbnail after leaving BUFFR so it follows the cursor through Explorer and compatible hosts.

  • File drops from native Wayland applications reach BUFFR again when it is embedded in XWayland DAW windows, with an incoming-drop indicator before release.

  • Export drags work after importing audio whose sample rate differs from the DAW sample rate.

  • Embedded Linux editors no longer crash when a host window rejects a focus request.

  • Rebuilt the editor on Baseview 0.3.2, kept Settings and Diagnostics inside the main window, and hardened resize and input handling against reported editor crashes.

  • Editor opening, closing, reopening, resizing, and UI scaling now follow the host window contract consistently across CLAP and VST3.

  • Late host callbacks after an editor closes are ignored safely instead of retaining or re-entering a destroyed editor.

  • Windows standalone now uses the same native graphics fallback as hosted formats instead of failing on systems without working OpenGL.

  • Activation, support, and update downloads now reject oversized or malformed responses cleanly.

  • Windows waveform selections no longer collapse when the window backend repeats a drag-start event.

  • Dragging an exported selection into Windows Explorer no longer freezes BUFFR during the native file handoff.

  • Linux X11 resize handling now distinguishes actual DAW parents from window-manager decoration frames, addressing the observed standalone runaway resize and memory growth while preserving embedded resizing.

  • Dragged audio, MIDI, and combined files remain available for DAWs that finish importing asynchronously after a cancelled, rejected, or failed native handoff; repeated audio drags keep reusing the prepared file.

  • Diagnostic storage failures and unavailable snapshots are now reported explicitly instead of appearing successful or empty.

  • Repeated drags reuse prepared files, successful or ambiguous handoffs survive undo and editor closure, and rejected or failed drags release temporary files; native drag, resize, and modal callbacks no longer re-enter rendering, and Windows System Audio follows output changes and closes cleanly during host teardown.

  • Windows System Audio now closes cleanly when a host validates or unloads BUFFR while continuing to follow default-output changes.

  • System Audio status now refreshes immediately after startup or shutdown, and recoverable capture discontinuities no longer restart capture.

  • MIDI input controls now announce live activity to screen readers.

  • Repeated audio and spectral drags now reuse one prepared file, and files already handed to a host survive cancellation, undo, and closing the editor.

  • Nested native window callbacks no longer freeze or crash BUFFR during file dragging, resizing, or modal window interactions.

  • Plug-in teardown no longer aborts when the final background worker finishes during shutdown.

  • Parked timeline zoom and file dragging now respond immediately instead of waiting for background repaint limits.

  • Windows plug-in and standalone interfaces no longer freeze or crash when native input arrives during a redraw.

  • Clearing or replacing a recording now releases its resident audio memory without discarding retained audio.

macOS · 1.0.69 · Windows · 1.0.69 · Linux · 1.0.69

BUFFRstable

1.0.40

21 better · 7 faster · 32 fixed

Better

  • First-run Capture setup now lets users choose whether offline processing is cached in the background, with clear memory guidance on hover.

  • With background Wet preparation disabled, selecting audio starts one exact preview with visible progress; enabling it also prepares reusable full-buffer previews.

  • Updating on Windows now requests permission, waits for the host to release BUFFR, replaces the standard CLAP and VST3 installs, and places the standalone app on the Desktop.

  • Updating on macOS now opens the signed, notarized BUFFR installer in Apple Installer.

  • Linux updates place the standalone app on the Desktop and request administrator permission only when an existing system-wide plug-in copy also needs updating.

  • First-run setup now uses two focused Capture and MIDI steps, with format help on hover and Bit depth beside History.

  • Global MIDI source and multi-controller linking now share one setup page with a clearer alternating device list.

  • Finishing setup now blooms into a brief BUFFR-colored Ready moment before revealing the recorder.

  • Dropped audio and MIDI now append at the end of their lanes, and one undo restores the complete pre-drop audio and MIDI state, including combined drops.

  • Audio drops target the selected channel, while All preserves BUFFR source-channel routing when available; imported MIDI keeps its embedded MIDI channels.

  • The drop target now highlights the affected lane and audio destination with a foreground dashed aurora overlay.

  • Linux installation guidance now lists the runtime libraries and graphics support required by the release package.

  • Platform guidance now states the Windows MIDI Services, Linux runtime-library, and macOS deployment baselines required for a reliable BUFFR install.

  • Global MIDI now relies on native sharing on current Windows 11 systems. Exclusive legacy Windows inputs should use Host MIDI from the DAW.

  • Extended plug-in validation now allows enough time for large multi-rate Windows validation runs to complete.

  • Settings now exposes locally published experimental releases as the Unstable update channel.

  • The current Nice Plug and Baseview editor lifecycle improves native window ownership, display scaling, and editor open/close behavior across CLAP, VST3, and standalone builds.

  • BUFFR now uses the current upstream egui rendering and input backend while preserving accessibility, native drag-and-drop, frame scheduling, and graphics recovery behavior.

  • Keyboard input uses the current cross-platform event model while preserving BUFFR's native window, display-scaling, and drag behavior.

  • Offline effect-analysis caches now rebuild safely from retained recordings after the experimental dependency update.

  • Experimental builds refresh the audio, graphics, resampling, analysis, and updater foundations for current platform compatibility.

Faster

  • Background Wet analysis now has a fixed memory budget, while disabling it releases the cache and avoids duplicate selection export rendering.

  • Silent rolling capture now leaves the interface truly idle instead of continuously redrawing an empty timeline.

  • Unchanged interface frames now reuse the last presented image instead of rebuilding and presenting the complete window.

  • Spectral analysis now stops at the newest safe FFT window instead of repeatedly scheduling impossible future work.

  • Software-rendered editors limit live redraws, and background effect analysis no longer busy-spins while recording.

  • Audio processing now flushes denormal values to prevent avoidable CPU spikes on x86 systems.

  • Spectrogram rendering reuses one GPU-coverage snapshot per frame and avoids rescanning unchanged tile memory while idle.

Fixed

  • Wet waveform previews now require exact continuous cache coverage, and unavailable audio can no longer appear as a valid silent Wet signal.

  • Successful drags from an XWayland BUFFR editor into Bitwig now release the source gesture cleanly, so later drags work without reopening the interface.

  • New audio activity wakes the waveform immediately, while reopening or refocusing the editor always restores a complete frame.

  • Back always returns to Capture, and completed steps can be reopened from the setup progress bar.

  • Files dragged from another BUFFR window or a Wayland app now reach embedded BUFFR editors on Hyprland.

  • A failed Hyprland drop no longer blocks later drags until the editor is reopened.

  • Windows software-rendered editors now stay responsive during timeline selection, settings changes, and live capture without returning to excessive redraw load.

  • Spectral view now fills the complete visible recording during live capture instead of leaving thin analyzed chunks separated by gaps.

  • Rapid Windows editor automation and resize callbacks no longer crash the host while a frame is rendering.

  • Standalone audio and MIDI now work with interfaces that require native input or output buffer sizes, including MOTU M2 capture and Windows WASAPI devices.

  • Windows hosts can scan, instantiate, unload, and reopen saved BUFFR projects reliably while Global MIDI detects device changes in the background.

  • Rapid Windows editor automation and resizing no longer crashes the host or overwrites the user's interface preferences.

  • The standalone window now displays the BUFFR title instead of a framework placeholder.

  • Standalone MIDI input now processes complete controller bursts per audio block, preventing chords and dense control changes from being delayed across later buffers.

  • The macOS AU now targets macOS 13 instead of inheriting macOS 15 from the release builder.

  • Linux Global MIDI now verifies the exact controller endpoint and live owner before offering one-time RawMIDI compatibility setup, avoids incorrect setup prompts, and reports the saved supervised controller in route status.

  • Updating BUFFR now restarts an active Linux MIDI route service so it immediately runs the newly installed helper.

  • Rapid editor close and reopen cycles no longer abort Linux hosts while the graphics surface is being recreated.

  • VST3 parameter automation no longer wakes an operating-system queue from the real-time audio thread, reducing intermittent dropout and stability risk.

  • Linux only offers its one-time shared MIDI setup when another application actually holds the selected controller.

  • Audio and MIDI activity now refreshes the editor promptly without waking background services from the real-time audio thread.

  • VST3 host bypass controls now stay synchronized while audio processing is active and after state restoration.

  • Rapid host automation of UI scale no longer compounds window dimensions or stalls the editor on Linux.

  • Repeated Windows plug-in state save and restore no longer crashes after Global MIDI device monitoring starts.

  • Windows builds work with the upgraded accessibility and native file-drag backends.

  • Audio and MIDI activity now wakes the editor immediately, while text, icons, and controls stay visible and correctly scaled across displays and zoom levels.

  • Corrupt plug-in state is rejected without crashing; restored values, saved defaults, and audio-buffer state remain consistent during host state and lifecycle handoffs.

  • Host deactivation now cancels offline effect analysis promptly instead of waiting for obsolete catch-up work.

  • Native Wayland editors can be reopened reliably, shut down cleanly when the plug-in unloads, and no longer report a file drag as complete before the destination finishes reading it.

  • The BUFFR logo renders correctly again throughout the experimental graphics build.

  • Spectrogram analysis now reaches the GPU continuously instead of appearing as thin chunks that slowly fill while zooming.

  • The standalone app now keeps running through recoverable audio-device changes, stream dropouts, and denied real-time priority instead of treating them as fatal errors.

macOS · 1.0.40 · Windows · 1.0.40 · Linux · 1.0.40

RELAYbeta

0.1.0

1 new

New

  • First public RELAY — CONNECT and LINK, LAN PCM, named listen page, CLAP and VST3 on Linux, Windows, and unsigned universal macOS.

macOS · 0.1.0 · Windows · 0.1.0 · Linux · 0.1.0

KORREKTbeta

0.19.0

4 new · 2 faster

New

  • Rebuilds KORREKT as a minimal Center, Punch, and Spectral instrument, with the live oscilloscope inside the giant draggable Center control and real values inside both smaller controls.

  • Auto compares identity, a conservative bank, and the full spectral search, then replays candidates through the shipped lattice filter before publishing the safest winner.

  • Adds four real analysis lookbacks with bounded search budgets, adaptive click-free pole transitions, a measured spectral rainbow, and visible zero host latency.

  • Punch now uses Hann-windowed harmonic detection and must beat a focus-free Auto finalist under exact continuous lattice replay before it can replace the safe centered bank.

Faster

  • Pole changes now finish through finite staged all-pass paths, coalesce rapid analysis updates to the newest target, and measure their adaptive rate against retained programme audio.

  • Programme-level fallback refinement searches nearby frequency and radius basins, while deep Punch candidates must sharpen four unseen analysis windows without sacrificing centering or true peak.

macOS · 0.19.0 · Windows · 0.19.0 · Linux · 0.19.0

KORREKTbeta

0.18.9

1 new

New

  • Gives the editor a sport-orange visual system with neutral charcoal surfaces, athletic Barlow Semi Condensed typography, sharper geometry, lime telemetry, and a vibrant multicolor spectral palette.

macOS · 0.18.9 · Windows · 0.18.9 · Linux · 0.18.9

KORREKTbeta

0.18.8

1 new

New

  • Restores the rotary Amount, Depth, and Focus controls with refined instrument styling, keeps precision sliders for time-based controls, and replaces tinted surfaces with a neutral charcoal palette.

macOS · 0.18.8 · Windows · 0.18.8 · Linux · 0.18.8

KORREKTbeta

0.18.7

1 new

New

  • The editor is rebuilt as a focused phase-analysis instrument with custom precision rails, flat mode matrices, clearer telemetry, Archivo typography, and a restrained graphite-and-ice visual system.

macOS · 0.18.7 · Windows · 0.18.7 · Linux · 0.18.7

KORREKTbeta

0.18.6

2 new · 1 faster · 3 fixed

New

  • Spectral rotation now moves up to 32 adaptive all-pass sections toward the frequency regions driving the current peak imbalance.

  • Broadband and Spectral modes both optimize waveform balance while preserving magnitude response and guarding against true-peak regression.

Faster

  • The oscilloscope now uses peak-preserving band-limited interpolation and bounded display work for readable shapes at every zoom level.

Fixed

  • Before and After balance meters now follow DSP measurements instead of changing with oscilloscope zoom.

  • Changing spectral detail or latency now transitions through prepared state without disabling correction, clicks, or garbled blocks.

  • Audio-driven repaint keeps the scope responsive during continuous playback instead of waiting for a UI interaction to wake it.

macOS · 0.18.6 · Windows · 0.18.6 · Linux · 0.18.6