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Hojo-TTS-Light
Hojo-TTS-Light is an open-source lightweight Text-To-Speech model by HojoAI team.
There are currently two types of model parameter sizes, Hojo-TTS-Light-80M and Hojo-TTS-Light-40M. Both follow the token-LM framework and both can generate good enough quality speech (average DNSMOS>4.0 on Seed-TTS eval dataset).
Currently, Hojo-TTS-Light supports both Chinese and English.
Hojo-TTS-Light-40M supports 15 build-in voices，2 for Chinese and 13 for English. Hojo-TTS-Light-80M also supports voice cloning with a few seconds of audio. We provided optimized ONNX model packaging file, so that users can perform speech synthesis efficiently on CPU without requiring a GPU.
Features
- Ultra-Lightweight Core Model --- The core language model is only 80M and 40M parameters, with extremely small parameter size under the same sound quality and very low deployment threshold.
- Native Bilingual Integration --- A single model supports smooth synthesis for both Chinese and English, no branch switching required.
- Low Computational Cost & On-Device Friendly --- Low memory usage and low inference overhead, which can run smoothly on CPU, ordinary GPU, and embedded edge devices.
- Ready to Use --- Provides simple inference scripts and fast calling interfaces, enabling synthesis and cloning with one line of code, facilitating secondary development and business integration.
- Supports quick correction --- For the problem of easily mispronouncing Chinese and English polyphonic characters and proper nouns, users can directly use Pinyin to correct pronunciation errors and improve the reliability of speech synthesis.
Model Details
- The model follows the Token-LM model paradim.
- The speech tokenizer is composed of a 18M encoder and a 30M decoder.
- Currently the released version runs at 50Hz token rate and the 12.5hz version models will be released soon.
Roadmap
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support streaming mode synthesis
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support emotion and style control
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support multi-lingual and multi-dialect
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202608
- release Hojo-TTS-Light v2 Hojo-TTS-Light-80M ONNX model and inference engine, add fine local model.
- release Hojo-TTS-Light v2 Hojo-TTS-Light-40M ONNX model and inference engine, add fine local model.
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202606
- Hojo-TTS-Light has been updated to the optimized ONNX model file (KV cache merging)
- release Hojo-TTS-Light-40M ONNX model and inference engine
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202605
- release Hojo-TTS-Light v1 Hojo-TTS-Light-80M ONNX model and inference engine
Commercial Support
We offer commercial support for teams integrating Hojo TTS into their products. This includes integration assistance, custom voice development, and enterprise licensing.
Contact us or email developer@hojoai.com to discuss your requirements.
Star History
Credits
Licence
This project is open-sourced under the Apache 2.0 License, which can be freely used for academic research, personal projects, and commercial secondary development.