POST /api/v1/voice/voices creates a voice from a WAV recording of one speaker (multipart audio, name, language, consent=true). It answers 202 with status running; poll GET /api/v1/voice/voices until it is ready, then set an agent's voice_id to its voice_id. language is the language spoken in the recording, any of the agent languages above; the voice speaks all of them, Chinese included, and sounds most like the speaker in the recording's language. Each cloned voice costs Credits, shown in the dashboard before you create one.
