Generates waveform images from MP3 files. Combine it with jPlayer to make a soundcloud.com style MP3 player.
$ ruby waveform.rb song.mp3 waveform.png
Some pretty heavy requirements:
- ruby-audio
- the gem version, not the old outdated library listed on RAA
- http://github.com/warhammerkid/ruby-audio
- rmagick
- ...and therefore ImageMagick or GraphicsMagick
- ffmpeg
- just for decoding mp3 to wav, could probably be replaced by something more lightweight...
- http://pscode.org/javadoc/src-html/org/pscode/ui/audiotrace/AudioPlotPanel.html#line.996
- http://github.com/pangdudu/rude/blob/master/lib/waveform_narray_testing.rb
- http://stackoverflow.com/questions/1931952/asp-net-create-waveform-image-from-mp3
- http://codeidol.com/java/swing/Audio/Build-an-Audio-Waveform-Display
Copyright (c) 2010 Ben Alavi
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
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