---
license: cc-by-nc-4.0
language:
- mai
pipeline_tag: text-to-speech
tags:
- bolo
- sherpa-onnx
- onnx
- text-to-speech
- tts
- vits
---

# mms-tts-mai

Maithili voice converted for [bolo](https://github.com/cb-Sigma/bolo), a speech server that runs without PyTorch (sherpa-onnx).

## Use it

```bash
bolo pull mms-tts-mai
```

## Licence

Weights: **CC-BY-NC-4.0** - non-commercial use only.
The full licence text is in `LICENSE`.

## Attribution and provenance

```
mms-tts-mai: Maithili voice from Meta's Massively Multilingual Speech (MMS) project

Model: https://huggingface.co/facebook/mms-tts/tree/44cc7fb408064ef9ea6e7c59130d88cac1274671/models/mai
Authors: Vineel Pratap, Andros Tjandra, Bowen Shi, et al. (Meta AI), "Scaling Speech Technology to
1,000+ Languages", 2023, https://arxiv.org/abs/2305.13516

Licence: Creative Commons Attribution-NonCommercial 4.0 International (CC-BY-NC-4.0),
https://creativecommons.org/licenses/by-nc/4.0/ (full text in LICENSE). NON-COMMERCIAL USE ONLY.

Changes: format conversion only (PyTorch checkpoint to ONNX with the original VITS inference code,
mms-meta/MMS at revision 65d863f41196654aa8b8f3dc586474a4c8f30934), made with tools/voices/export_mms.py of the
bolo project (https://github.com/cb-Sigma/bolo). The weights were not retrained or otherwise changed.
Inference code: VITS, MIT licence, Copyright (c) 2021 Jaehyeon Kim.
```

Source: https://huggingface.co/facebook/mms-tts/tree/44cc7fb408064ef9ea6e7c59130d88cac1274671/models/mai

This repository holds a format conversion only; the weights were not retrained.

## Measured by the bolo maintainers

| | |
| --- | --- |
| round-trip WER (5 sentences) | 0.486 |
| round-trip CER | 0.129 |
| recogniser | indicconformer-mai-community |
| real-time factor (2 threads, shared 4 vCPU) | 0.523 |
| time to first audio (ms) | 1534 |
| date | 2026-11-13 |