OpenVoice is an open-source research project that enables versatile and instant voice cloning using just a short audio clip from a reference speaker.
OpenVoice can accurately replicate the reference speaker's unique voice tone and characteristics, while generating speech in multiple languages and accents.
It allows granular control over various voice styles like emotion, accent, rhythm, pauses, and intonation when generating the cloned voice.
OpenVoice can clone voices and generate speech in languages that were not present in its training data, achieving zero-shot cross-lingual voice cloning.
OpenVoice is computationally efficient, costing significantly less than commercial voice cloning APIs. It is an open-source project released under the MIT license for free commercial and research use.
OpenVoice decouples voice cloning into tone color cloning and voice style control, using techniques like normalizing flows and a base multi-speaker text-to-speech model. This allows accurate replication of the reference voice tone while enabling flexible manipulation of styles like emotion and accent.