# Real-time Speech Recognition with Vosk and Zig

This project implements a minimal real-time speech-to-text application using Vosk and Zig.

## Setup

### Prerequisites
- Zig 0.15.1 (configured via mise)
- Nix development environment with C compilation tools, ALSA, and audio libraries

### Vosk Model Download
The application uses the Vosk small English model for speech recognition:
- **Source**: https://alphacephei.com/vosk/models/vosk-model-small-en-us-0.15.zip
- **Size**: ~50MB
- **Language**: English only
- **Accuracy**: Good for simple sentences and commands

### Installation Steps
1. Enter nix development environment: `nix develop`
2. Download Vosk model: `wget https://alphacephei.com/vosk/models/vosk-model-small-en-us-0.15.zip`
3. Extract model: `unzip vosk-model-small-en-us-0.15.zip`
4. Build application: `zig build`
5. Run: `./zig-out/bin/stt`

## Usage
The application will:
- Initialize audio capture from default microphone
- Load the Vosk speech recognition model
- Process audio in real-time
- Output recognized text to terminal
- Exit on Ctrl+C

## Dependencies
- Vosk C API library
- ALSA for audio capture
- Standard C libraries for audio processing