ggwave

ggwave is a compact C++ library for transmitting small amounts of digital information between nearby devices through sound. It uses a frequency-shift keying protocol that converts data into audible or ultrasonic audio tones. Reed-Solomon error correction improves reliability when recordings contain noise or imperfect frequency detection. The library generates and analyzes raw waveforms while allowing applications to choose their own audio capture and playback systems. It supports use cases such as device pairing, offline broadcasting, audio QR codes, authorization, and microcontroller communication. Bindings and examples are available for browsers, Python, Node.js, iOS, Android, Arduino, ESP32, and Raspberry Pi Pico. Command-line, graphical, WebAssembly, and file-based demonstrations are included.

Features

Data transmission through sound
Audible and ultrasonic protocols
Reed-Solomon error correction
Custom audio backend integration
Browser and mobile platform bindings
Microcontroller communication examples

Project Samples

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License

MIT License

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Additional Project Details

Programming Language

C++

Related Categories

C++ Libraries

Registered

2026-07-17

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