Perform FFT for every second on wav file with Python
What you are looking can be accomplished in a single lane, by using the standard command for the STFT
I need to FFT wav files?
Your error message states that you are trying to iterate over an integer (a). When you define a via
a = data.T[0]
you grab the first value of data.T. Since your data files are single channel, you are taking the first value of the first channel (an integer). Changing this to
a = data.T
will fix your problem.
WAV FFT: Slice indices must be integers
abs() doesn't make your number into an integer. It just turns negative numbers into positive numbers. When len(c) is an odd number your variable d is a float that ends in x.5.
What you want is probably round(d) instead of abs(d)
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