Description
BUFFR is a retrospective multichannel audio and MIDI recorder plug-in for DAWs. It keeps up to two hours of DAW audio, System Audio, MIDI, and MPE ready to recover, edit, and drag back into a project after you play.
Availability
- Status
- Stable release · $49 launch price · Perpetual license with version 1.x updates
- Platforms
- macOS, Windows, Linux
- Plug-in formats
- AUv2, CLAP, VST3
- Standalone
- Included for Linux, Windows, and signed notarized macOS packages
Key features
- Retrospective capture keeps up to two hours of recent audio and MIDI while BUFFR is loaded.
- Captures 16 routed DAW audio channels, a separate stereo System Audio lane, and all 16 MIDI channels.
- Captures System Audio on macOS 13+, Windows 10/11, and native PipeWire Linux systems.
- Global MIDI records one selected controller outside DAW track arming while preserving MIDI and MPE expression.
- Spectral Grab selects, auditions, extracts, or removes sound by time and frequency.
- Audio and MIDI retain independent or linked playback, looping, markers, selections, and drag-out.
- Snap combines musical grids, transients, true zero crossings, markers, MIDI, and spectral bands.
- Center Align, Ride, normalization, tone, phase, and amplitude tools process retained audio non-destructively.
- Five-second recovery checkpoints protect audio, MIDI, and markers for the saved plug-in instance.
- Native export covers 16- or 24-bit FLAC, WAV, and Standard MIDI Files; MP3, AAC/M4A, and Ogg/Opus export requires FFmpeg.
- Native WAV import is included; FLAC, MP3, M4A/AAC, Ogg/Opus, and AIFF import requires FFmpeg.
- Linux drag-out has worked on every desktop Matari has tested: Hyprland, niri, KDE Plasma, GNOME, and Xfce.
- Linux, Windows, and signed notarized macOS release packages include the standalone application.
Logo and product images
Use the artwork as supplied. The ZIP contains the logo in SVG and PNG, two current full-resolution screenshots, this product description, and the social image.

