# WebSocket Audio Server

This is a FastAPI server that receives audio from an ESP32 via WebSocket, saves it, processes it (converts 32-bit to 16-bit), and sends it back for playback.

## Installation

1. Install dependencies:
   ```bash
   pip install -r requirements.txt
   ```

## Usage

1. Start the server:
   ```bash
   python server.py
   ```
   Or:
   ```bash
   uvicorn server:app --host 0.0.0.0 --port 8000
   ```

2. Update the IP address in `main.py` on your ESP32 to match your computer's IP address.
   Look for `SERVER_IP` variable.

## Features

- Receives raw audio stream from ESP32.
- Saves raw audio to `received_audio.raw`.
- Converts 32-bit audio (from ICS-43434) to 16-bit audio (for MAX98357A).
- Streams processed audio back to ESP32 for playback.