README.md

metadata

title: PrimeTTS Streaming WASM
emoji: 🔊
colorFrom: green
colorTo: indigo
sdk: static
pinned: false
short_description: Real-time streaming zh-TW + English TTS (WASM, no server)
models:
  - Luigi/PrimeTTS

PrimeTTS · real-time streaming (WASM edition)

Fully client-side port of Luigi/PrimeTTS-Streaming (FastAPI + WebSocket) to a static Space that runs entirely in the browser — no server, no WebSocket. Type text, hear audio stream chunk-by-chunk (24 frames ≈ 384 ms each).

• Vocoder: token-level MB-iSTFT-VITS split into enc (text→z, once) + dec (z-chunk→audio, per chunk, overlap-save), run via onnxruntime-web (WASM).
• Frontend: g2pw (BERT ONNX, bopomofo/Taiwan readings) + CMU-dict-based English g2p — ported to plain JS, BERT inference via onnxruntime-web.
• Streaming-input demo: two GGUF LLMs (llama2.c-zh 15M story generator, Gemma-3-270m-it chat) run via wllama (llama.cpp compiled to WASM); OpenCC (opencc-js) converts to zh-TW.
• UI: static HTML + Web Audio API, PCM chunks played as they arrive.

All model weights (~600 MB total: 2 ONNX vocoder splits, 1 ONNX g2p model, 2 GGUF LLMs) are fetched lazily from the Luigi/PrimeTTS model repo on first use and cached by the browser — nothing is bundled into this Space.

zh-TW + English, 16 kHz.

Local development

npm install
npm run dev      # http://localhost:5173
npm run build    # outputs dist/