---
title: Bol TTS Marathi
emoji: 🪔
colorFrom: yellow
colorTo: red
sdk: static
pinned: false
license: apache-2.0
models:
- shreyask/bol-tts-marathi-onnx
tags:
- text-to-speech
- marathi
- kokoro
- webgpu
- on-device
---

# bol-tts-marathi — Marathi TTS via WebGPU

In-browser Marathi (मराठी) text-to-speech, running real-time on WebGPU. Six voices, code-switch (Minglish) support, no server round-trip.

This Space ships **both the built demo** (`index.html` + `assets/` served directly) **and the full source** (`src/`, `package.json`, `tsconfig.json`, `vite.config.ts`) so anyone can fork the Space and rebuild without de-minifying the bundle.

## What's in this Space

| Path | Role |
|---|---|
| `index.html`, `assets/*` | built demo, served via static SDK |
| `voices/*.bin` | 6 voicepacks (style vectors, 522 KB each) |
| `voicepacks.json` | source-of-truth for voice list + per-gender test phrases |
| `src/` | TypeScript source (phonemizer, tokenizer, model wrapper, UI wiring) |
| `public/` | static assets fed to the build |
| `package.json`, `tsconfig.json`, `vite.config.ts` | reproducible build config |
| `index.template.html` | the source-side index.html that Vite injects modules into |

## Reproduce locally

```bash
git clone https://huggingface.co/spaces/<USER>/<THIS-SPACE>
cd <THIS-SPACE>
npm install
npm run dev      # local dev server at http://localhost:5173
npm run build    # produces dist/ — same artifacts shipped here
```

## How it works

- 82M-parameter Kokoro fine-tune for Marathi (model: [`shreyask/bol-tts-marathi-onnx`](https://huggingface.co/shreyask/bol-tts-marathi-onnx))
- `@huggingface/transformers` loads the ONNX model into WebGPU (or falls back to WASM)
- `espeak-ng-wasm` phonemizes Marathi + Indian English; we parse `(en)/(mr)` tags for per-segment Indian-accent rules on English chunks
- 6 voices via single shared model + per-voice 256-D style vectors (`voices/*.bin`, [510, 1, 256] float32)
- Test phrases + voice metadata in `voicepacks.json` — edit to add voices, no code changes needed

Recipe + training scripts: [github.com/shreyaskarnik/bol-tts-marathi](https://github.com/shreyaskarnik/bol-tts-marathi)

## Voices

| ID | Name | Gender | Source | Status |
|---|---|---|---|---|
| `mf_asha` | Asha (आशा) | female | Rasa Marathi | stable |
| `mm_vivek` | Vivek (विवेक) | male | Rasa Marathi | stable |
| `mf_mukta` | Mukta (मुक्ता) | female | IndicVoices-R | stable |
| `mm_dnyanesh` | Dnyanesh (ज्ञानेश) | male | IndicVoices-R | stable |
| `mf_priya` | Priya (प्रिया) | female | SPRINGLab IndicTTS | v0.2 preview |
| `mm_arjun` | Arjun (अर्जुन) | male | SPRINGLab IndicTTS | v0.2 preview |

## License

Apache 2.0. See LICENSE.