sstv

📻 SSTV

Slow Scan Television encoder and decoder — Transmit and receive images over audio, browser-based.

▶️ Lancer l’application

🚀 Features

• TX Mode — Encode images to SSTV audio signals
• RX Mode — Decode SSTV audio back to images
• Multiple Formats — Martin, Scottie, Robot modes
• Web Audio API — Real-time audio processing
• Microphone Input — Decode live signals
• Speaker Output — Transmit via audio

🛠️ Tech Stack

• Pure HTML/CSS/JavaScript
• Web Audio API for signal processing
• Canvas for image manipulation
• No external dependencies

📖 Usage

Transmit (TX)

1. Load an image
2. Select SSTV mode (Martin M1, Scottie S1, etc.)
3. Click transmit — audio plays through speakers

Receive (RX)

1. Allow microphone access
2. Play SSTV audio near microphone
3. Watch the image decode line by line

🎓 Ham Radio

SSTV is used by amateur radio operators to transmit images over HF/VHF frequencies. This tool lets you experiment without a radio license using audio cables or acoustic coupling.

📄 License

MIT

👤 Author

Eric PERRET — GitHub