Stem Extractor
Browser tool that pulls aligned per-track WAV stems from an OP-XY using MIDI solo and recording

Works with
- OP-XY connected over USB (MIDI and audio)
Good to know
- Heads up: The source carries a noncommercial license, so read its terms before any commercial use.
About
A browser-based tool for getting individual track stems out of a groovebox that only sends a stereo master over USB. It solos each track over MIDI while recording the audio, then gives you aligned per-track WAV files. This entry covers the OP-XY, and the project has a link for requesting other machines.
Web