Decoding the signal from magnetic stripe card or ticket using just a simple magnetic head connected to a microphone jack. Recording an audio WAVE file, and then this information can be decoded by the 2 programs included.



First program dab.c decodes the audio signal into bits - 0s and 1s. The second program dmsb.c decodes bits into readable ascii code which can be read by a human. After this the decode process is complete.



The best thing of this software is that you can record the information from a magnetic stripe card, on your mp3 player and decode information later on. Or you can do it in real time when both programs are run with pipe command in Linux.



The source code can be modified and compiled for Windows. The license is GPL license - free to use. This was my graduation project in the Technical University for master degree in Informatics.