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OpenVoice V2 is an open-source instant voice-cloning and text-to-speech model developed by MyShell in collaboration with researchers from MIT and Tsinghua University. It can clone a speaker’s voice from a short audio sample and generate speech with control over voice style, including emotion, accent, rhythm, pauses, and intonation. OpenVoice V2 also adds improved audio quality and native multilingual support.
Key Features
- Instant voice cloning
- Short reference-audio requirement
- Accurate tone-color cloning
- Voice style control
- Emotion control
- Accent control
- Rhythm control
- Pause control
- Intonation control
- Zero-shot cross-lingual voice cloning
- Improved audio quality
- Native multilingual support
- Text-to-speech
- Voice cloning across languages
- Open-source model
- Local deployment
- Python support
- PyTorch support
- Gradio demo
- V2 model checkpoints
- Commercial-use support under MIT License
Pros & Cons
Pros
- Free to use
- Open source
- MIT licensed
- Allows commercial use
- Can clone a voice from a short audio sample
- Supports voice-style control
- Supports cross-lingual voice cloning
- Can be run locally
- Provides access to the source code
- Does not require a proprietary subscription to use the open-source model
- Supports multiple languages natively in V2
Cons
- Requires technical knowledge for local installation
- Local deployment requires a suitable computing environment
- V2's native language support is limited to six languages
- Voice quality and stability can depend on the setup and input audio
- Not packaged as a conventional managed commercial voice platform
- Developers may need to install and configure supporting models and dependencies
- Community-supported installations on platforms other than Linux are not official
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