Give it 10–20 seconds of clean speech and it will read new text back in that voice. The quality of the clone is decided almost entirely by that one sample — get the sample right and everything else follows.

What a good sample looks like

The tool wants WAV, MP3 or M4A — mono, at least 24kHz, 10–20 seconds of clear speech (hard caps: 60 seconds, 10 MB). Within that, aim for:

  • One speaker, talking normally. Plain narration, not shouting or whispering. The clone copies the energy it hears.
  • Dead-quiet background. No music, no TV, no street noise. Whatever's behind the voice gets baked in.
  • A few full sentences, not isolated words. The model needs natural rhythm and intonation to imitate.

The mistakes that ruin a clone

Most disappointing results trace back to the sample, not the tool:

  • Background noise or echo. A reverby room or a fan hum makes the clone sound muddy. Record somewhere soft and small (a closet full of clothes is a classic trick).
  • Clipping. If the original was recorded too loud and the peaks are distorted, the clone inherits the distortion. Back off the mic or input level.
  • Two voices. A clip where someone else talks over the end confuses the model. Trim to just your target speaker.
  • Too short. Three seconds isn't enough rhythm to copy. Give it the full 10–20.

If a clone sounds off, don't tweak settings — re-record a cleaner sample. That fixes it nine times out of ten.

Generate, then sanity-check

Once it's cloned, type a sentence the original sample didn't contain and listen. New words are the real test — anything can echo back a phrase it was given. The output downloads as a WAV.

Use it responsibly

Only clone a voice you have the right to use — your own, or someone who has clearly agreed. Cloning a person's voice without consent is the kind of thing that gets people into real trouble, and it's not what this is for.

On privacy: the processing runs in your browser, so the sample stays on your device rather than going to a server.

Have a clean clip ready? Drop it into the Voice Cloning tool and have it read something new.