---
title: Offex Voice Studio
emoji: 🎙️
colorFrom: indigo
colorTo: pink
sdk: gradio
sdk_version: 5.45.0
app_file: app.py
pinned: false
---

# Offex Voice Studio

Premium Gradio interface for high-fidelity voice cloning with IndexTTS-2.

## Quota-smart design

- All pip installs and the full model snapshot (main + auxiliary models, ~8 GB) are downloaded by a background warm-up thread on the CPU at Space startup, so the ZeroGPU allocation is used only for synthesis.
- The GPU duration is estimated per request from the input length instead of a fixed value, so visitors only reserve the quota they actually need.

## Quality features

- Reference clips are automatically trimmed of silence, capped to 20 seconds and peak-normalised for a closer clone.
- Optional emotion reference and text-derived emotion controls.
- Seed control for reproducible generations.

## Runtime notes

The Space SDK is pinned to Gradio 5.45.0 to stay on the huggingface-hub 0.x line required by the official IndexTTS 4.52.1 stack.

The static requirements file intentionally omits gradio, spaces, transformers and tokenizers; those are supplied by the Space runtime or installed lazily with --no-deps. tensorboard is pinned to 2.18.0 for NumPy 2.x compatibility (2.9.1 crashed on the removed `np.bool8` alias), and app.py also re-adds the alias defensively for any other legacy dependency.

Upload or record a reference voice, enter English text, confirm the permission checkbox, and press Generate Voice.