| ---
|
| license: mit
|
| language:
|
| - zh
|
| pipeline_tag: text-to-speech
|
| library_name: onnxruntime
|
| tags:
|
| - openvoice
|
| - melotts
|
| - onnx
|
| - xrtranslate
|
| base_model:
|
| - myshell-ai/MeloTTS-Chinese
|
| ---
|
|
|
| # XRTranslate OpenVoice ONNX
|
|
|
| Community-maintained, reproducible ONNX conversions of official MyShell MeloTTS
|
| language checkpoints for XRTranslate's pure-Rust OpenVoice V2 provider. These
|
| are not official MyShell or NVIDIA artifacts.
|
|
|
| ## Packages
|
|
|
| | Package | Language | Precision | Installed size | Base output |
|
| | --- | --- | --- | ---: | ---: |
|
| | `openvoice-v2-zh-onnx-fp16` | Chinese (mixed English) | FP32 text / FP16 acoustic | 460.9 MiB | 44,100 Hz |
|
|
|
| Each package is self-contained: its language-specific frontend and feature
|
| graph, MeloTTS acoustic graph, OpenVoice V2 converter, reference speaker
|
| encoder, source tone embedding, licenses, and a machine-readable per-file
|
| SHA-256 manifest. XRTranslate returns converted audio at 22,050 Hz mono PCM16.
|
|
|
| ## Reproducibility
|
|
|
| The production graphs are exported in the existing `torch211cu128` Conda
|
| environment with Python 3.10, PyTorch `2.11.0+cu128`, CUDA 12.8, ONNX 1.22.0,
|
| ONNX Runtime 1.23.2, and opset 16. PyTorch is not upgraded or downgraded.
|
|
|
| ```powershell
|
| conda run -n torch211cu128 python third_party/openvoice_onnx_export/build.py `
|
| --language <language-key> `
|
| --output runtime/.temp/openvoice-onnx-export
|
| ```
|
|
|
| Exact upstream commits, source hashes, graph tensor contracts, conversion
|
| versions, smoke-test results, and produced file hashes are recorded in each
|
| `packages/<language-key>/v1/package-manifest.json`.
|
|
|
| ## Upstream and licenses
|
|
|
| - [MeloTTS](https://github.com/myshell-ai/MeloTTS) and
|
| [OpenVoice](https://github.com/myshell-ai/OpenVoice) are MIT licensed.
|
| - Each package manifest pins its exact MeloTTS checkpoint repository and commit.
|
| - Source tone embeddings come from
|
| [`myshell-ai/OpenVoiceV2`](https://huggingface.co/myshell-ai/OpenVoiceV2).
|
| - Language-specific BERT/tokenizer, G2P, dictionary, and normalization notices
|
| are preserved inside that package.
|
|
|
| See each package's `licenses/` directory before redistribution.
|
|
|
| ## Limitations
|
|
|
| The packages require a compatible CUDA ONNX Runtime in XRTranslate. They are
|
| not standalone Python TTS APIs. Voice cloning transfers tone color;
|
| pronunciation, accent, and prosody remain controlled by the selected MeloTTS
|
| language pack.
|
|
|
