On Wed, 25 Mar 2009 11:26:00 +0530, Soumen banerjee wrote: > Hello, > I'm kind of new to python and i wanted to do a little project, make a > frequency plot of some wav audio. I have been following this webpage > http://www.acronymchile.com/sigproc.html and have got to the making of a > dat file containing the samples and time of sampling. The question here > is how do i use FFT.fft to actually take an fft of this dat file since > the first two lines are useless and also we have a \r\n after every > sample. Also i would like some explanation on what FFT.fft expects as > input. Does it expect the sampling times also or only the sampling > values?
Did you follow the instructions in the webpage? I quote: "Analysing the Signal This is really quite easy, assuming you have Numerical Python and the FFT modules installed. Continuing from our last code snippet, where "out" contains a list of the samples from our sound file, the following gives us an FFT: import Numeric import FFT out_array=Numeric.array(out) out_fft=FFT.fft(out) It is as easy as that!" Have you done this? Did it work? If not, what error did you get? If it did work, then what's the problem? -- Steven -- http://mail.python.org/mailman/listinfo/python-list
