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Source code for jury-rigged software modem
This project forked from goodybag/file-transfer-over-soundcard
Source code for jury-rigged software modem
This is the code to accompany two blog-posts I wrote about transfering data between computers using a jury rigged sound-card 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. The articles can be found here: http://awesomegeekblog.blogspot.com/2009/04/file-transfer-over-sound-card.html http://awesomegeekblog.blogspot.com/2009/04/file-transfer-over-sound-card-ii-phase.html The code is public domain.
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