Original mix
The same 12-second song excerpt before separation.
Post-generation stem editing
Split Library Songs Into Editable Stems
Move from a finished generated song to separated parts. Instead of treating the mix as one locked file, inspect vocals, rhythm, instruments, and ambience as their own layers. After separation, use the stems like a working mix: focus on one part, mute a layer, compare balance, or export files for the next production step.
Lead vocals
Main vocal phrasing isolated from the full mix.
Drums
Kick, snare, and groove separated for rhythm edits.
Bass
The low-end line exposed for remixing and mix balance.
Every Layer Shines(Guitar).mp3
Guitar accents separated from the arrangement.
Every Layer Shines(Piano).mp3
Chord movement and piano detail isolated for review.
Every Layer Shines(Other).mp3
Remaining textures and harmonic layers from the same excerpt.
Before you split
What to Expect From Each Stem Run
Stem separation works from uploaded audio or saved Sunoi songs and returns useful parts only when those sounds exist in the mix.
Upload or saved songs
Upload a supported audio file or choose a completed song from your Sunoi library. Stem Splitter is designed for source audio that already exists.
Provider-returned stems
The run returns the available stem pack for that song, rather than a guaranteed list of every instrument category.
Quiet parts are normal
If the original track has no clear bass, drums, vocal, or texture layer, the related stem may be quiet or less useful.
Library song workflow
Split Your Music in 3 Steps
Use an uploaded audio file or a generated song from your library, run the split, then review the parts that matter for your next edit.
Select Source Audio
Upload a local audio file or pick the Sunoi track you want to inspect, remix, or prepare for deeper production.
Run Stem Separation
Create a stem pack that targets vocal, rhythm, instrument, and ambience families.
Review and Export Parts
Open My Songs after processing, listen to the finished stem files, and move useful layers into your next editing workflow.
Choose the right split
Stem Splitter vs Vocal Remover
If you only need one vocal track and one instrumental backing track, Vocal Remover is usually the faster fit.
Main purpose
Separate the full mix into Vocals, Drums, Bass, Other, Guitar, and Piano stems Separate vocals from the instrumental backing
Output files
Creates exactly six tracks: Vocals, Drums, Bass, Other, Guitar, and Piano. 2 tracks: vocals and instrumental
Best for
Remixing, mix review, learning, and detailed production prep Karaoke, covers, and quick instrumental versions
Control level
More granular control over vocals, rhythm, instruments, and ambience Simple two-track control
Post-generation stem control
More Control Over Generated Songs
Stem Splitter comes after AI Music Generator or AI Song Extender: keep the finished mix as the source, then open the individual parts when the arrangement is ready for deeper editing.
Source Mix to Full Stem Pack
Start from one saved song and review the original audio beside separated Vocals, Drums, Bass, Other, Guitar, and Piano files when those parts exist in the mix.
Split a saved songLayer-Level Mix Decisions
Use separated layers to hear what is carrying the song, isolate a rhythm or hook, rebalance dense sections, or decide whether Vocal Remover is enough for a simpler two-track job.
Try the stem demoReady for the Next Production Step
Keep the generated song, the extended version, and the stem pack connected in My Songs so useful layers can move into remix drafts, rehearsal mixes, edits, or DAW sessions.
Open My SongsPractical production uses
Where Stem Splitting Helps
Separated stems are useful whenever the final song is close, but the mix needs more focused review or creative reuse.
Prepare Content Edits
Make background versions, loopable moments, or cleaner cue edits from music already in your library.
Create Remixes
Start from isolated hooks, bass, drums, or textures and build a new version around the strongest element.
Study Song Parts
Listen to vocals, rhythm, and harmony separately to understand what makes the arrangement work.
Sunoi workflow
Keep Working After Stem Splitting
Use Stem Splitter as one step in a broader AI music suite: remove vocals, generate instrumental ideas, or create a stronger source song first.
Need only vocals and backing?
Use Vocal Remover when the job is a faster two-track split instead of full multi-part separation.
Open Vocal RemoverNeed an instrumental first?
Use Text to Music to create background music and instrumental foundations before deeper editing.
Open Text to MusicNeed a complete source song?
Start in AI Music Generator when you still need the original vocals, arrangement, and full track before splitting stems.
Open AI Music GeneratorFrequently Asked Questions
What does an AI stem splitter do?
An AI stem splitter analyzes a full mix and separates it into audio parts such as vocals, drums, bass, instruments, and ambience. Sunoi can use uploaded audio or songs already available in your library.
How is Stem Splitter different from Vocal Remover?
Vocal Remover is focused on two outputs: Vocals and Instrumental. Stem Splitter targets a broader set of stem families: Vocals, Drums, Bass, Other, Guitar, and Piano.
How many stem files can one split produce?
A separation can return Vocals, Drums, Bass, Other, Guitar, and Piano stems for uploaded audio or the selected saved song. The exact useful audio depends on which parts are present in the original mix.
Why does one stem sound silent or very quiet?
A stem file only contains meaningful audio when that kind of sound exists in the source song. If the track has no clear bass, vocal, drum, or texture layer, the related file may be silent, quiet, or less useful.
Can I use the stems in music production software?
Yes. Exported stems can be moved into common DAW and editing workflows for remixing, practice mixes, arrangement review, and additional production work.
Do I need audio engineering experience?
No. The split runs automatically from uploaded audio or a selected library song, while the separated files give more advanced users room for detailed editing.
Split Your Song Into Stems
Upload an audio file or choose a completed source song from your library, generate separated parts, and open My Songs when processing finishes to continue editing the mix. Start with uploaded audio or a saved Sunoi song