README.md

metadata

title: sub200
emoji: 🎙️
colorFrom: purple
colorTo: blue
sdk: gradio
sdk_version: 4.44.0
app_file: app.py
pinned: false
license: mit
hardware: zero-gpu-h200

sub200 - Ultra Low Latency TTS Hosting

sub200 allows you to host different open source TTS (Text-to-Speech) engines with ultra low latency.

Features

• 🚀 Ultra Low Latency - Optimized for real-time speech synthesis
• 🎯 Multiple Engines - Support for Piper, Coqui TTS, Edge TTS, eSpeak, gTTS, and pyttsx3
• 🌐 Web UI - Simple, modern Gradio interface
• ⚡ Fast - Built with Gradio for high performance
• 🎮 GPU Support - Optimized for GPU acceleration with Coqui TTS (H200 dynamic allocation)

Available TTS Engines

1. Piper TTS - Ultra low latency, offline
2. Coqui TTS - High quality neural TTS (GPU accelerated)
3. Edge TTS - Microsoft Edge TTS (free, online)
4. eSpeak - Fast, lightweight, offline
5. Google TTS (gTTS) - Online, requires internet
6. pyttsx3 - Offline, uses system voices

Usage

1. Enter your text in the text box
2. Select a TTS engine from the dropdown
3. Adjust speed if needed (0.5x to 2.0x)
4. Click "Generate Speech"
5. Audio will auto-play when ready!

GPU Support

This Space is configured for zero GPU (H200 dynamic allocation):

• GPU is allocated automatically when Coqui TTS is used
• No GPU needed for other engines (Piper, Edge TTS, eSpeak, etc.)
• Efficient resource usage with dynamic allocation

Model Files

Piper Models

• Models are downloaded automatically at runtime if not present
• Or you can include them in the repository (they're ~60MB each)

Coqui Models

• Models are downloaded automatically on first use
• They're cached in the Space's storage

Local Development

# Install dependencies
pip install -r requirements.txt

# Run server
python app.py

Then open http://localhost:7860

Performance Tips

1. Use GPU - Coqui TTS benefits significantly from GPU acceleration
2. Choose Right Engine:
   • Piper - Fastest, lowest latency, offline
   • Edge TTS - Best quality, requires internet
   • Coqui - High quality, GPU accelerated
   • eSpeak - Fastest, basic quality, offline

Troubleshooting

• No audio generated: Check engine status in the accordion
• GPU not working: Ensure zero GPU is enabled in Space settings
• Model download fails: Check internet connection for online engines