Generate Animated GIF Files for Plotting Audio Data

This m-file generates a animated GIF file that visualizes audio data.

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Theodoros Giannakopoulos
http://www.di.uoa.gr/~tyiannak
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The provided m-file:
* Reads a wav file.
* Splits the audio data into non-overlapping windows (e.g 1 second).
* For each window, an image of the audio data and the corresponding spectrogram is created and attached to an animated .gif file.

M-file description:

function createAnimatedGifFromWav(wavFileName, windowLength, Width, framesPerSec)

ARGUMENTS:
- wavFileName: the name of the .wav file to read
- windowLength: the length (in seconds) of each window to be plotted in the gif
- Width: the width of the generated .gif file
- framesPerSec: frames per second for the gif annotated file.

NOTE: the generated .gif file's name is [wavFileName_animatedGIF.gif]

------------------------------------
Theodoros Giannakopoulos
http://www.di.uoa.gr/~tyiannak
------------------------------------