how to clone a voice

definition

Cloning a voice is a four-step flow on the Speechify Build API: record a sample, capture consent, create the voice, and synthesize with it. Zero-shot cloning makes this self-serve, so the whole path fits into an app or a script.

the-steps

First, record a clean sample of 10 to 30 seconds, under a minute and under 5MB, with no background noise. Second, capture the speaker’s consent: their full name and email. Third, POST to /v1/voices as multipart/form-data with the name, gender (male, female, or not_specified), the sample as binary, and the consent record as a JSON string. You receive a voice_id.

synthesizing

Pass the voice_id to POST /v1/audio/speech, or the streaming endpoint, with your text. The cloned voice speaks it. Use simba-multilingual to reach 30+ languages; the curated simba-3.2 set plays cloned voices too, but each one currently requires manual Speechify approval.

consent-is-required

The consent field is mandatory and must contain the speaker’s full name and email. There is no create path without it, so you cannot clone a voice you have not been authorized to clone. See the ethics page and the voice cloning API.