StemLab: AI Vocal Isolator

Split any song into 6 isolated stems on your iPhone — vocals, drums, bass, guitar, piano and other. Nothing uploads. Nothing waits in a cloud queue. No subscription required.

StemLab runs the AI separation entirely on your device, then opens a full multi-track mixer with studio FX, A/B looping, recording and stem export. Built for musicians, producers and singers who want clean, isolated stems without monthly fees.

SEPARATE
Imports MP3, WAV, FLAC, M4A, even MP4 and MOV video — up to 500 MB per file. Choose a 4-stem or 6-stem AI model and pull out vocals, drums, bass, guitar, piano and more in a single pass. Works as a vocal isolator, instrumental maker, acapella extractor and backing track creator. Everything happens on your iPhone, iPad or Mac — your music never leaves the device.

MIX
A real multi-track mixer, not just a separator. Per-stem volume, solo and mute. Set A/B loop points to slow a solo down, transcribe a phrase by ear, or rehearse the chorus on repeat. Scrub the timeline with centisecond precision and watch live waveforms render in real time.

MAKE IT YOURS
Record your own vocal over the instrumental, lay a guitar take on top of the AI bass, or import any audio file as a custom layer. Build mashups, track covers, write demos, replace a stem entirely — all inside one session, on your phone.

ADD EFFECTS
Shape each stem with a 6-effect chain: Pitch Shift, Reverb, Delay, Compressor, 4-band EQ and Saturation. Run Bus FX across the master mix. Bypass any effect without removing it. Save your settings as a reusable preset and load them onto the next song with one tap.

EXPORT
Send out individual stems or a new stereo mixdown in WAV, FLAC or M4A — baked with your FX chain, so your Pitch Shift, Reverb, Delay, Compressor, EQ and Saturation settings carry straight into the export. Choose your sample rate (44.1 / 48 / 96 kHz) and bit depth (16 / 24 / 32-bit). Drop the result straight into your DAW, sampler, looper or any other app.

Built for guitarists isolating solos, bassists transcribing lines, beatmakers pulling clean acapellas, DJs making edits, music teachers building practice tracks, worship leaders covering for missing players, choirs rehearsing a part, and singers laying covers over the original.

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StemLab Pro unlocks unlimited separations, individual stem export, the full FX chain and unlimited presets. Available as a one-off lifetime purchase — buy once, keep what you bought. Weekly, monthly and yearly subscriptions are also available.

EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Terms: https://lauperlabs.com/stemlab/terms
Privacy: https://lauperlabs.com/stemlab/privacy