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Open Studio → GLOBAL PARAMETERS → VOICE. CUSTOM VOCAL offers an uploaded reference sample or a trained voice from SAVED VOICES.

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Use a vocal reference

  1. Select UPLOAD SAMPLE and choose or drop an audio file. The dialog lists WAV, MP3, FLAC, OGG, and WebM.
  2. Review the filename and size. Use REPLACE or REMOVE to change it.
  3. Set VOCAL RESEMBLANCE, then DONE.
  4. Confirm your generation. The app uploads and saves the sample at this point, then uses it as a reference for the track.
Custom Vocal dialog with Upload Sample and an audio drop area listing supported formats.

The app's Upload Sample tab.

Choose an isolated mono or stereo vocal recording of no more than four minutes if you want it prepared for trained use. Uploads must be under 50 MiB. A sample can be saved before preparation finishes; a long recording can save and still fail preparation. Selecting a file alone does not upload it. The upload and generation have separate service charges.

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Save vocals from a generated song

On a READY Studio variation, select SAVE VOICE. Rawchunks keeps a voice profile named from the song and starts preparing its vocals for reuse. Check it in MY-PAGE → MY VOICES, or reopen VOICE → SAVED VOICES. You may see SAVED, PREPARING, READY, or ERROR, with separate Fast and Master status.

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Reuse a trained voice

Choose FAST or STUDIO MASTER in Studio first. Open SAVED VOICES, select a voice marked Ready for that mode, then DONE. Unready voices are disabled for the selected mode.
Saved voice selected in Custom Vocal, with Fast Ready, Master Ready and a Vocal Resemblance slider.

An example prepared voice in the app's saved-voice selector.

Preparation trains a small custom voice adaptation, called LoRA, for each generation mode. You don’t set training parameters or start a separate training job in the app. A reference sample can be usable before the trained voice is ready.

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Adjust resemblance and check the result

VOCAL RESEMBLANCE covers 10–100%, starting at 65%. It controls how strongly you request the voice’s character. Even at its highest setting, listen to the result before treating it as a match. In MY VOICES, PLAY SAMPLE plays the saved reference. RETRY refreshes voice status after a loading error; it does not restart training. Use REMOVE VOICE in the Studio dialog to clear the generation selection.