Animation *.wav to *.avi spectrum animation generator.

This script takes an audio file in *.wav and converts it into an *.avi animation using its spectrum.

This script takes an audio file in *.wav format and converts it into an *.avi animation using its spectrum.
It uses a STFT to generate the espectrum of the sound in current time and some seconds ago.
Ploting this spectrum and adding frames to a video object it manages to generate an *.avi with the sound ant an animation of its spectrum.
An example of the output:
http://www.youtube.com/watch?v=sbAdta_qu4A