Pastebin

quietnet: Simple chat program using inaudible sounds 

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Simple chat program using near ultrasonic frequencies. Works without Wifi or Bluetooth and won't show up in a pcap.

Note: If you can clearly hear the send script working then your speakers may not be high quality enough to produce sounds in the near ultrasonic range.

https://github.com/Katee/quietnet

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- Installation

Quietnet is dependant on pyaudio[1] and Numpy[2].

[1] http://people.csail.mit.edu/hubert/pyaudio/
[2] http://www.numpy.org/

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Better Projects

Quietnet is just a toy! Take a look at minimodem[3] or gnuradio[4] if you need something robust.

[3] http://www.whence.com/minimodem/
[4] http://gnuradio.org/