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How AI stem separation works.

From finished song to model-dependent stems, preview, and export.

  1. 01

    Submit your audio

    Upload a supported audio file. separ8 validates and prepares it for separation.

  2. 02

    Tracks get isolated

    Your selected model estimates separate source tracks. Available stems depend on the model and recording.

  3. 03

    Preview and download

    Use the browser mixer to preview available stems, then download individual tracks, a ZIP, or a custom WAV mix.

Model choice changes available stems

Different separation models target different source groups. Common outputs include vocals, drums, bass, guitar, piano, other, and instrumental, but no model guarantees every instrument as its own lane.

Separation estimates sources from a mix

A finished song does not contain its original studio tracks. Models estimate likely sources, so dense arrangements, reverb, and overlapping frequencies can leave bleed or artifacts.

Step 03, live

Try the mixer on a real separation

This is the same mixer you get after a job finishes. Hover any control to see what it does.

Start by soloing a single stem, then scrub the timeline.

Loading mixer…

beyond separation

Build your own mix, not just listen to ours.

Solo, mute, balance, and pan available stems in the browser. Download one stem, all stems as a ZIP, or export a custom WAV mix for rehearsal and practice.

Start mixing your own track

Common questions

  • Upload an audio file (MP3, WAV, FLAC, M4A and other common formats). We prepare it for separation.

  • Processing time varies with track length, model choice, and available compute. The progress log shows each real processing stage while your job runs.

  • A set of isolated tracks (vocals, drums, bass and more) that you can preview in the in-browser mixer and download individually.

  • A free account takes about 30 seconds, no card, and unlocks more: 5 extra separations a month (10 total instead of 5), up to 5 saved mixes you can reopen anytime, stems that stay after guest files expire, and your own @handle shown on every mix you share. Plus raises monthly separations to 40 with up to 100 saved mixes (30-day trial on monthly). Pro raises separations to 100 with up to 300 saved mixes and has no trial.

Need a specific workflow? Try the vocal remover, learn how to split songs into instrument tracks, or review the FAQ.