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Jean Ibarz authored
Added a script to generate Gammatone FIR filters in .wav format, by using the library from Bingo Todd. Because a rectangular windowing produces ringing in the magnitude of the frequency response at low frequencies when the filter have ~512 coefficients, we apply a windowing of the filter impulse response in order to improve the filter quality. After windowing, a normalization is applied to restore the correct magnitude peak in the frequency response domain.
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