Press SPLIT on a track or a deck and four pads appear: DRUMS, BASS, VOCALS, OTHER. They bite around the playhead within seconds while the rest of the track fills in behind. Nothing leaves your device.
Free to play — every instrument, the DJ decks, up to 10 tracks. No card, no install in the browser.
OTHER is defined as the mix minus the other three, so with all four pads up you hear the untouched record.
Separation follows the listener: it works outward from where you are, then fills the rest.
Stem pads on every audio track and on each deck’s master — every instrument group, plus the audio splits.
Land the four stems as beat-gridded tracks, split a looper pad, or bounce the whole song to stems (Studio).
It is the htdemucs model family running as Core ML; the standard net gives four usable stems within seconds, and an HD upgrade re-commits drums, bass and vocals in the background on Mac and iPad.
No. Everything runs on the device; the model downloads once (about 80 MB) on first use.
iPhone, iPad, Mac and Apple Vision Pro. In the browser, stems export is available; live separation is native-only.