Stem Splitter
Feed in one stereo mix and get back the parts that built it (vocals, drums, bass, guitar, piano and everything else), each on its own channel, ready to mute, solo, rebalance and export.
Take one mix apart into six tracks.
Upload a finished song and get vocals, drums, bass, guitar, piano and other back as real, independent audio you can rebalance and export.
Upload a song & split stemsStep by step
- Upload your track
MP3, WAV, M4A or OGG. Cleaner sources give cleaner separation.
- Run the separation
The model returns up to six stems, with a progress indicator as it works.
- Mix and export
Volume, pan, mute, solo and EQ per channel, then download lossless WAV.
What stem separation is doing under the hood
A finished song is a single waveform, every instrument summed together into one signal. There is no metadata in an MP3 saying "this frequency at this moment belongs to the snare". Splitting it apart means reconstructing information that was thrown away when the record was mixed and mastered, which is why it is a hard problem and not a simple filter.
JamScore AI uses an AI model that works on the spectrogram: a time-versus-frequency picture of the song. Trained on huge libraries of tracks where the individual stems are known, it has learned the characteristic shapes each instrument family makes: the sharp transients of drums, the sustained low fundamentals of bass, the plucked decay of guitar. For each point in the spectrogram it predicts how much belongs to each stem, then rebuilds six separate audio tracks from those predictions.
Because the split produces real independent tracks, you are not stuck with the original balance. Each stem arrives on its own mixer channel, so you can quiet the drums, push the piano forward, or drop everything except the rhythm section, then export exactly the version you want.
Where a multitrack helps
- Remixing and production: pull real stems out of a finished record to rework, chop or resample.
- Transcription: an isolated part is far easier for the ear and for AI to turn into MIDI or notation.
- Rehearsal and practice: mute your own instrument to play along, or solo it to check yourself against the record.
- Restoration and clean-up: separate a problem element so you can treat it without touching the rest of the mix.
Related tools
Frequently asked questions
How many stems do I get?
Up to six: vocals, drums, bass, guitar, piano and "other". The free plan produces a two-stem split (vocals and instrumental); the full six-stem separation is a Pro and Studio feature.
What ends up in the "other" stem?
Anything the model cannot confidently place in vocals, drums, bass, guitar or piano (strings, synth pads, brass, backing choir, handclaps and sound effects) all land in "other". It is a catch-all, not a mistake.
Can I mix the stems, not just export them?
Yes. Each stem lands on its own mixer channel with volume, pan, mute, solo and a three-band EQ, so you can rebalance the song before you export any stem as WAV.
Will every song split cleanly into six parts?
No. Sparse, well-recorded arrangements separate cleanly; dense mixes where instruments overlap in frequency will show some bleed between stems. That is a limitation of the physics: overlapping signals cannot always be fully untangled.
Ready to pull a song apart?
Upload any track and get separate, mixable stems in minutes.
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