ggwave

ggwave

ggwave is a tiny data-over-sound library that enables communication of small amounts of data between air-gapped devices using sound. It implements a simple Frequency-Shift Keying (FSK) transmission protocol that can be easily integrated into various projects. The library supports a bandwidth rate of 8-16 bytes/sec, depending on the protocol parameters, and utilizes error correction codes (ECC) to enhance demodulation robustness.

Key Features:

• Data Transmission: Communicate small data packets using sound waves.
• FSK Modulation: Employs a multi-frequency FSK modulation scheme for encoding and decoding data.
• Error Correction: Uses Reed-Solomon error codes for improved data integrity.
• Cross-Platform Support: Compatible with various platforms including Linux, Mac, Windows, and more.
• Easy Integration: Can be integrated with any audio backend like PulseAudio or ALSA.

Benefits:

• Air-Gapped Communication: Ideal for scenarios where devices cannot connect to the internet.
• Versatile Applications: Suitable for IoT devices, file sharing, and more.
• Open Source: Available for free, encouraging community contributions and enhancements.

Highlights:

• Supports audible and ultrasonic protocols.
• Provides a simple command-line interface for testing.
• Includes examples and documentation for easy setup and usage.