Select authorized audio
Choose an eligible library song or upload a recording you can process. A high-quality master without clipping or repeated transcoding preserves more detail for the separation model.
AI Stem Splitter
Multi-track music separation
What is an AI stem splitter?
An AI stem splitter separates a finished song into synchronized musical groups such as vocals, drums, bass, and other instruments. These outputs are called stems. They let you listen, mute, study, or process parts of a mix independently even when you do not have the original multitrack recording used to produce the song.
Creatune offers different separation depths because not every task needs the same number of files. A 4-stem split provides vocals, drums, bass, and a combined other stem for practical remix control. A broader multi-stem workflow targets more instrument families when arrangement analysis or detailed production matters. Vocal removal remains available for the simpler vocals-versus-instrumental job.
AI stem separation estimates sources from a master; it cannot reverse mixing perfectly. Reverb, distortion, shared frequencies, stereo processing, and mastering compression can place the same sonic information across several stems. Start with high-quality audio you are authorized to process, choose the smallest useful mode, and review every stem before treating it as production-ready material.
Multi-stem workflow
How to split a song into stems
Choose the output based on the next task, not the largest number of stems. Fewer coherent tracks can be more useful than many uncertain ones.
Choose the stem depth
Use 4-stem for vocals, drums, bass, and other. Choose a broader split for instrument-specific work, or Vocal Remover when only voice and accompaniment are required.
Run AI separation
The model follows timbre, rhythm, pitch, spatial cues, and musical context over time to estimate synchronized source groups from the combined mix.
Preview stems together and soloed
Listen for bleed, missing attacks, ambience, and phase-like texture. A stem may sound unusual alone yet recombine well, so judge both isolation and how the parts work together.
Choose the useful output
Vocal, 4-stem, or multi-stem separation?
The right mode balances speed, cost, clarity, and the amount of control you genuinely need for the next stage.
| Mode | Output focus | Best next step |
|---|---|---|
| Vocal Remover | Vocals + instrumental | Karaoke, a cappella, fast two-track editing |
| 4-Stem | Vocals, drums, bass, other | Remixing, practice, arrangement balance |
| Multi-stem | More instrument families | Detailed production, transcription, and study |
| Add Instrumental | A newly generated part | Expanding the arrangement instead of separating it |
Production and learning
What can you do with separated stems?
Stems turn one fixed master into a more inspectable musical system. Use that control to understand, practice, or rebuild material you are allowed to work with.
Build an authorized remix
Lower, mute, rearrange, or process musical groups independently. Vocals can sit over a new rhythm; drums can be replaced; bass can be studied against the harmony without forcing every change through the full master.
Practice one role at a time
Mute the instrument you play, keep the remaining arrangement as accompaniment, and hear how your part relates to the groove. Teachers can also isolate examples of rhythm, harmony, and orchestration.
Transcribe melody and arrangement
Reduce masking while identifying bass motion, drum patterns, chord voicings, vocal phrasing, or instrument entrances. For melodic material, a clean stem can also be a better source for Audio-to-MIDI than the full mix.
Prepare samples and production references
Inspect textures, transitions, and section density, or create authorized edit material. Separation helps reveal production choices, but confirm rights before sampling, redistributing, or publishing any extracted content.
Stem quality guidance
How to get more useful stem separation
The model works with information preserved in the master. File quality and arrangement overlap set practical limits on what any separator can recover.
Avoid unnecessary recompression
Use the best available authorized file. Low-bitrate encodes, clipped masters, phone-speaker recordings, and files converted through several formats contain artifacts that can spread across the estimated stems.
Understand musical overlap
Kick and bass share low frequencies; guitars, piano, and vocals meet in the midrange; cymbals and vocal consonants share high-frequency transients. Bleed or softened detail is normal where sources occupy the same spectral and spatial region.
Do not request more stems than the job needs
A compact 4-stem result can be clearer for remixing than a broader split with uncertain boundaries. Choose multi-stem output when isolating specific instrument families has real value for the next task.
Use stems as editable material
Trim silence, clean artifacts, balance levels, and check alignment before production. AI separation provides a strong working draft, not guaranteed access to the pristine recordings captured before the song was mixed.
Plans and credits
Choose a plan for AI Stem Splitter
Use AI Stem Splitter with flexible monthly, annual, or one-time credits shared across Creatune.
Basic
12,000 credits/year
$14.9$9.9/month
billed annually
Save 33% — Limited Time Offer!
- 12,000 credits/year
- Up to 1,200 standard music generations
- Up to 800 premium music generations
- 3,376 seconds Music Video
- MP3 Downloads
- Creatune Omni Model Access
- Commercial License
- 365-day Cloud Storage
Most Popular
Pro
30,000 credits/year
$39.9$19.9/month
billed annually
Save 50% — Limited Time Offer!
- 30,000 credits/year
- Up to 3,000 standard music generations
- Up to 2,000 premium music generations
- 8,296 seconds Music Video
- Everything in Basic
- Creatune Omni Model Access
- Commercial License
- 30-day Cloud Storage
Best Value
Max
84,000 credits/year
$90.9$39.9/month
billed annually
Save 56% — Limited Time Offer!
Credits per year
84,000
- 84,000 credits/year
- Up to 8,400 standard music generations
- Up to 5,600 premium music generations
- 23,640 seconds Music Video
- Everything in Pro
- Creatune Omni Model Access
- Commercial License
- Priority Queue
- Unlimited Cloud Storage
- Priority Email Support
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Music stem questions
AI Stem Splitter FAQ
What are stems in music?+
Stems are synchronized groups of audio from a song, commonly vocals, drums, bass, and other instruments. They provide more control than a single master but are broader than every individual microphone or track in the original project. AI estimates these groups when original production files are unavailable.
How does an AI stem splitter work?+
It analyzes timbre, pitch, rhythm, spatial cues, and patterns over time to estimate which sounds belong to different musical sources. The model then writes synchronized audio outputs. Because a master permanently blends instruments and effects, the stems are useful estimates rather than guaranteed original multitracks.
Should I choose 4-stem or multi-stem separation?+
Choose 4-stem when vocals, drums, bass, and other provide enough control for remixing or practice. Choose multi-stem when a specific instrument family must be studied or processed independently. More outputs increase detail but may also expose uncertain boundaries in dense arrangements.
Does splitting stems reduce audio quality?+
The process does not intentionally lower quality, but estimated sources can contain bleed, softened attacks, or watery and phase-like artifacts where sounds overlap. A high-quality input helps. Judge stems in context as well as soloed, because some artifacts are less noticeable when tracks recombine.
Can I turn a separated stem into MIDI?+
Yes, when the stem contains a clear monophonic melody such as a vocal line, bass, whistle, or simple lead. Send authorized audio to AI Audio-to-MIDI, then refine timing and extra notes in the MIDI Editor. Dense chords and residual bleed generally need more cleanup.
Can I publish or sample separated stems?+
Separation does not create new rights in the recording or composition. Only process and reuse material you own or are authorized to edit. Before sampling, sharing, monetizing, or distributing stems, confirm that your permissions cover the recording, composition, performers, territory, and intended platform.
Turn one master into workable musical parts.
Choose the smallest useful separation, process audio you are authorized to use, and preview every stem before remixing, studying, or converting notes.
Split stems with AI