---
title: Studify WhisperX Alignment
emoji: 🎯
colorFrom: blue
colorTo: green
sdk: gradio
sdk_version: "5.9.1"
app_file: app.py
app_port: 7860
pinned: false
license: mit
---

# 🎯 Studify WhisperX Word-Level Alignment

Industry-standard forced alignment service for perfect TTS word-level highlighting in the Studify app.

## 🚀 Features

- **WhisperX Large-v2** model for accurate transcription
- **Forced alignment** for precise word-level timestamps
- **GPU accelerated** (T4/A10G) for fast inference
- **REST API** with FastAPI
- **Multi-language support**

## 📡 API Endpoints

### Health Check
```bash
GET /
```

Returns service status and device info.

### Align Audio
```bash
POST /align
Content-Type: multipart/form-data

Parameters:
- audio_file: MP3/WAV file
- text: Original text (optional, improves accuracy)
- language: Language code (default: "en")

Response:
{
  "word_segments": [
    { "word": "Hello", "start": 0.11, "end": 0.48 },
    { "word": "world", "start": 0.48, "end": 0.90 }
  ],
  "duration": 1.2,
  "word_count": 2,
  "language": "en"
}
```

## 🔧 Usage Example

```python
import requests

files = {'audio_file': open('audio.mp3', 'rb')}
data = {'language': 'en'}

response = requests.post(
    'https://hexa09-bugget-whisperx-model.hf.space/align',
    files=files,
    data=data
)

timings = response.json()
print(timings['word_segments'])
```

## 🎨 Built for Studify

This service powers perfect word-by-word highlighting synchronized with TTS audio in the Studify educational app.

## 📚 Technical Details

- **Model**: WhisperX large-v2
- **Framework**: FastAPI + Uvicorn
- **Device**: CUDA GPU (when available) or CPU fallback
- **Precision**: FP16 (GPU) or INT8 (CPU)

## 🔗 Integration

See the [Studify TTS Alignment Architecture](https://github.com/Hexa-Innovate/Studify) for full integration guide.

## 📄 License

MIT License - Free for commercial and personal use