OpenVoice TTS

MyShell.ai's instant voice-cloning model with granular control over style, emotion, accent, and rhythm.

OpenVoice from MyShell.ai is built around a ToneColorConverter on top of a MeloTTS backbone, and its defining trait is granular controllability. It clones a voice from a short clip and then lets you independently tune style, emotion, accent, rhythm, pauses, and intonation, generating speech in multiple languages while preserving the speaker's identity. It also doubles as a voice converter for transforming one voice into another. On TTS.ai it covers English, Chinese, Japanese, Korean, French, and Spanish, accepts up to 5,000 characters, and needs roughly 10 seconds of reference audio to clone.