I'm trying to reduce my magnitude spectra, which I need in octave bands. I have 5 measurements of a sound source, recorded with the same microphone at different times. I want to get an average model of my data. Therefore I do the following for each of my recordings:

  • Divide my data in time windows
  • Compute STFT
  • Average STFT over time frames
  • Sum bins that fall in a specific range, corresponding to different octave bands

Once I have my octave band spectra for my 5 files I do the average of all the 5 magnitudes. I can't find any information about averaging different magnitude spectra.

Am I doing this wrong? Any help would be appreciated.



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