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Wireless Acoustic Communication

Audiocom is an open-source set of educational GNU Octave (MATLAB) scripts to steganographically embed data into audio signals. The data can then be transmitted between smartphones or from a loudspeaker to any microphone. Our Audiocom software is primarily used for proof of concepts, experiments, teaching and educational purposes. It is maintained by Lovefield Wireless.

Version: 2026-May-10

The acoustic capabilities (high quality miniature speakers and microphones) and the fast processors of modern smartphones allow for the transmission of data among phones, at low bitrate through the audio channel. Acoustic data transmission for one-way broadcast communication (from one device to a number of phones) is particularly attractive in scenarios that contain sound infrastructures (such as shopping malls, movie theaters, or open-air concerts). The Audiocom software supports real life experiments to test the robustness and reliability of such audio communication approaches.

Time-Frequency signal power spectrum of one spoken word, in decibels relative to full scale (dBFS).
Phase encoding.

Download

Download the code here . Developers might want to clone from bitbucket:

git clone https://bitbucket.org/lfield/audiocom.git

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