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metadata 
title: Chatterbox Voice Studio
emoji: 🎙
colorFrom: yellow
colorTo: red
sdk: docker
app_port: 7860
pinned: false
license: mit
short_description: Voice cloning studio for the Chatterbox TTS family.

Chatterbox Voice Studio

Open in Spaces License: MIT

A multi-platform browser-based voice cloning studio for the Chatterbox TTS family (English, Turbo, Multilingual). Runs locally on macOS (MPS), Linux (CUDA/CPU), and Windows (CUDA/CPU). Deploys to Hugging Face Spaces (Docker SDK, Free CPU by default; paid GPU tiers supported).

Quick start (local)

macOS / Linux 

./scripts/start.sh

Prereqs: Python 3.11+ and Node.js 20+. If missing, the script will tell you the one-line install command for your platform (brew install python@3.11 on macOS, apt install python3.11 python3.11-venv on Debian/Ubuntu).

Windows 

scripts\start.bat

If Python 3.11 or Node.js LTS isn't installed, the script will detect that and offer to install them via winget (built into Windows 10 1809+ and Windows 11). Accept the prompt and re-run scripts\start.bat after install finishes so the new PATH takes effect.

The script creates a venv, installs Python and Node deps, builds the SPA, and opens the studio at http://127.0.0.1:7860.

Hugging Face Spaces

This repo's Dockerfile is what HF Spaces uses to build the image. On Free CPU it runs as-is — generation will be slow (30–90s per clip).

To get GPU on Spaces, switch the Space hardware to a paid tier (T4 small, A10G, L4). ZeroGPU is not available on Docker Spaces — it's currently restricted to the Gradio SDK only.

Environment variables

Var Default Purpose
CHATTERBOX_DEVICE (auto) Force cuda / mps / cpu.
HF_HOME /tmp/hf Hugging Face cache.
CORS_ORIGINS http://localhost:5173,... Comma list of allowed CORS origins.
PYTORCH_ENABLE_MPS_FALLBACK 1 (mac) CPU fallback for unimplemented MPS ops.

Models

ID Source Languages Tags
chatterbox-en chatterbox.tts.ChatterboxTTS English —
chatterbox-turbo chatterbox.tts_turbo.ChatterboxTurboTTS English [laugh] [cough] [chuckle]
chatterbox-mtl chatterbox.mtl_tts.ChatterboxMultilingualTTS 23 langs (TBD)

Development

Backend tests:

.venv/bin/pytest

Frontend tests:

cd web && npm run test

Frontend dev server (with API proxy):

cd web && npm run dev    # http://localhost:5173

Smoke test

With the server running:

scripts/smoke.sh

Architecture

  • Backend: FastAPI + uvicorn. Three Chatterbox model adapters behind a swap-on-demand registry. Server is stateless; nothing user-visible persists across server restarts.
  • Frontend: React + Vite + Tailwind + shadcn/ui. Voice library and generation history live in the browser via IndexedDB (Dexie).
  • One-click: scripts/start.sh (mac/linux) or scripts/start.bat (windows) handles venv, install, build, serve, and opens Chrome.
  • HF Spaces: Dockerfile multi-stage build — Node stage builds the SPA, Python stage runs uvicorn with the bundled static files.