Serverless, peer-to-peer, local file sharing through sound

Tiny data-over-sound library

Transmit data using ultrasonic audio. Perfect for offline/network-free data transfer, automatic content recognition (ACR), and broadcast.

Data over sound file transfer web application

Yet another data-over-sound tool

SoniControl - the first ultrasonic firewall

Chirp for Arduino

Allows your device to communicate in an electronic sound language. Follow us on twitter: https://twitter.com/qrtone. Demo App in https://universite-gustave-eiffel.github.io/qrtone/

Setup wifi through sound

Mirror of ggwave used in the Arduino Library Manager

Chirp for Flutter

Helping groups securely exchange contact information.

Data over sound in the browser

C Libraries to encode and decode data over sound

Minimal Objective-C app for iOS using ggwave

Data transmission over audio

Share files of any size with Chirp and dat

iPhone SDK to decode ultrasonics

Example code for using Chirp with embedded devices

Chirp Alexa Toolkit