Saturalabs / Music & instruments
AI stem splitter. Choose the part you need.
Separate a described vocal or instrument from a mixed recording. Saturalabs works on one requested source per pass, giving you that source and the remaining audio to compare.
Start with your recordingThe track you’re looking for
The requested source, plus a separate remaining-mix track. This is not an automatic four-stem export.
Name one audible source. You can edit this prompt before running the separation.
Uploading opens the editor. Downloads require an account and credits. View pricing.
A focused approach
Text-guided separation gives you a focused pair of tracks
Many people search for a stem splitter when they need vocals, drums, bass, or another part from a finished song. Saturalabs lets you describe the source you want rather than choosing only a fixed set of categories. Each pass returns Isolated sound for the target and Background audio for the rest of the recording.
That workflow differs from a conventional four-stem splitter, which exports vocals, drums, bass, and other instruments together. Saturalabs does not automatically deliver that set in one pass. For several sources, start each request from the original mix and evaluate the results separately. They are estimated sources, not guaranteed replacements for original production stems.
From mix to source
How to use the stem splitter
Start with a finished mix
Upload MP3, WAV, MP4, or MOV up to 50 MiB (52.43 MB). Keep this original available for each source you want to attempt, so an earlier separation does not become the input for every later one.
Request one source
Describe a vocal or instrument you can hear. Try ‘The singing vocals,’ ‘The acoustic drum kit,’ or ‘The electric bass guitar.’ Avoid requesting several unrelated sources in the same prompt.
Review target and remainder
Listen to Isolated sound for the requested part and Background audio for the rest. Use both to identify instrument bleed, missing details, or material that ended up in the wrong output.
Repeat only when you need another part
For a different source, make a new request using the original recording. Download selected WAV outputs after checking their usefulness, and check the displayed credit cost for each download.
Be specific about the sound
A prompt for the result you want
Describe the source, then choose the output that matches your goal. These are starting points to try with your own recording.
| Your goal | Try this prompt | Keep this track |
|---|---|---|
| Separate the vocalsThe remainder may be useful as an instrumental backing. | The singing vocals | Isolated sound |
| Study the rhythm section's drumsRequests the kit as a group, rather than separate kit microphones. | The acoustic drum kit | Isolated sound |
| Play over a bass-reduced mixKeep the remainder and check kick, low keys, and leftover bass notes. | The electric bass guitar | Background audio |
Made for a real next step
Put the separated audio to work
Focus on one musical part
Bring forward a bass line, vocal, or drum part for closer listening. A focused source request is often enough when you are studying a particular performance.
Build a reduced practice mix
Keep the remainder when your goal is to play the requested part yourself. Check that other instruments still support the arrangement.
Prepare material for an authorized edit
Try recovering a useful source when original stems are unavailable. Compare it in the edit before choosing it over the finished mix.
Listen before you commit
Three checks worth making
Compare a quiet passage and a busy passage with the original, at a similar listening level.
Source identity
Confirm that the requested part dominates the isolated output. A loud track is not necessarily the correct source.
Bleed and lost detail
Listen to quiet and dense passages. Notice other instruments in the target, or parts of the target remaining in the background.
Use in your project
Check level, timing, and artifacts in the actual edit or practice setup. Do not assume independently extracted sources will rebuild an exact copy of the original.
Know the limits
Original stems and extracted sources are different
Production stems are exports made from a session's original tracks. AI separation estimates sources after those sounds have been mixed together. Effects, shared frequencies, and layered instruments can make an extracted part sound different from a session export.
Saturalabs does not promise phase-perfect reconstruction, separate files for every instrument, or simultaneous four-stem output. Use original stems for exact production control when available. For extraction, choose the source and output that solve your specific task, then listen before committing it to a project.
Does Saturalabs export four stems at once?
No. It separates one described source per pass and returns that source plus the remaining audio. This differs from an automatic vocals, drums, bass, and other four-stem export.
Can I separate several instruments from a song?
You can make separate requests for audible sources, starting each pass from the original mix. Each output needs its own review, and there is no guarantee that every instrument can be recovered cleanly.
Which output contains my requested instrument?
Isolated sound contains the source described in your prompt. Background audio contains the rest of the mix. For an instrument-reduced backing, keep Background audio instead.
Are AI-separated tracks the same as original stems?
No. Original stems are exported from the production session. AI separation estimates parts from a mixed recording and can change tone, effects, or transient detail.
Can I use separated tracks in a remix?
Only if you have the required rights or permission for the source material. Separation does not grant a remix or sampling license. Also check that the output quality suits your intended release.
Start with a sound you know
Bring your own recording.
Describe one source. Listen to both tracks. Keep what works for your project.