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Update spectrogram.py

master
Pete Shadbolt 9 years ago
parent
commit
6b4499cfaf
1 changed files with 1 additions and 1 deletions
  1. +1
    -1
      spectrogram.py

+ 1
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spectrogram.py View File

@@ -16,7 +16,7 @@ def make_wav(image_filename):
# Fourier transform, normalize, remove DC bias # Fourier transform, normalize, remove DC bias
data = np.fft.irfft(image, h*2, axis=1).reshape((w*h*2)) data = np.fft.irfft(image, h*2, axis=1).reshape((w*h*2))
data -= np.average(data) data -= np.average(data)
data *= (2**15.-1)/np.amax(data)
data *= (2**15-1.)/np.amax(data)
data = array("h", np.int_(data)).tostring() data = array("h", np.int_(data)).tostring()


# Write to disk # Write to disk


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