| --- |
| license: mit |
| library_name: transformers.js |
| pipeline_tag: text-to-speech |
| base_model: onnx-community/chatterbox-ONNX |
| tags: [tts, chatterbox, webgpu, onnx] |
| --- |
| |
| # Chatterbox for the browser |
|
|
| A repackaging of [onnx-community/chatterbox-ONNX](https://huggingface.co/onnx-community/chatterbox-ONNX) sized for in-browser use. |
|
|
| Two changes from upstream: |
|
|
| - **`speech_encoder` is a 6 KB stub.** transformers.js hardcodes it into |
| Chatterbox's session list, so it is fetched whether or not you use it — 564 MB |
| of model that a text-to-speech app never runs. The speaker conditioning it |
| would produce is instead precomputed once and shipped as `voices/default.bin` |
| (250 KB), passed straight to `generate()` as `speaker_embeddings`, |
| `speaker_features`, `audio_features` and `audio_tokens`. |
| - **Only the q4f16 language model is included**, not the fp32 copy. |
| |
| Together these take the download from ~1.4 GB to ~865 MB. |
| |
| Because the stub is never called, this repo **cannot clone a new voice** — it can |
| only speak in the bundled one. Use the upstream repo for cloning. |
| |
| Built for [Natural Voice](https://huggingface.co/spaces/arjun10g/natural-voice). |
| Weights remain MIT, as upstream. |
| |
