urmusic is a free and open-source software that allows you to easily create your own music visualizer and create a music video for it!
It makes use of hardware acceleration to render frames as fast as possible.
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jAudio is a project implementing a number of common feature extraction algorithms for analyzing audio in java. Output is either in Weka's ARFF format or the ACE format. Can be used either as a GUI application, command-line application, or embedded. The primary repository is on github (dmcennis) which pushes to this projects github repository.
DTMF detector library and/or application that reads in the specified audio file and returns/outputs whether DTMF detected and/or list of detected digits. May have GUI and command line interfaces.
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A fast, simple method of establishing musical genre of arbitrary compressed audio files calculated by comparisons with training sets. Program currently consists of a java console program. GUI front end, algorithm upgrades to come.