[SciPy-user] Create a spectrogram from a waveform

Matthieu Brucher matthieu.brucher@gmail....
Sat Aug 30 17:45:53 CDT 2008


You can start by checking the spectrogram function in matplotlib that
uses numpy.


2008/8/31 Ed McCaffrey <ed@edmccaffrey.net>:
> Hello,
> I wrote a program in C# that creates a spectrogram from the waveform of a
> .wav music file.  I now want to port it to Python, and I want to try to use
> SciPy instead of a direct port of the existing code, because I am not sure
> that it is perfectly accurate, and it is probably slow.
> I am having a hard time finding out how to do this with SciPy.  With my
> code, I had a FFT function that took an array of real and imaginary
> components for each sample, and a second function taking both that produced
> the amplitude.  The FFT function in SciPy just takes one array.
> Has anyone done this task in SciPy?
> Thanks.
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French PhD student
Website : http://matthieu-brucher.developpez.com/
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