about transfering data between computers using a jury rigged soundcard modem.
Note that these programs are mainly educational, and if you want to do this in a critical situation, you'll at the very least want to add Hamming-code or some other error correction scheme.
The source code consists of a multitude of programs.
- playback and record plays and record a data stream using OSS. If you don't have OSS support, ALSA can emulate it with the 'aoss' wrapper.
- generate turns a binary file into raw wave data.
- generate_psk does the same, except encoding it with phase shift keying.
- analyze turns a recording into data again
- analyze_psk does it for PSK-encoded data.
from https://github.com/vlofgren/file-transfer-over-soundcard
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