Quantifying Spectro-temporal Complexity (Nikolas Alejandro Francis )


Subject: Quantifying Spectro-temporal Complexity
From:    Nikolas Alejandro Francis  <nfu(at)MIT.EDU>
Date:    Wed, 27 Jul 2005 21:25:10 -0400

Hello Everyone, I just joined this list and look forward to participating in new discussions. My question is if anyone is aware of a method for quantifying the spectro-temporal complexity of a set of sounds. In the past I've moved a sliding window independently across time and frequency from 0 to the length of the sound and up to 22khz. For each window I found the standard deviation (SD) from the mean value within that window, and then averaged all of the SDs for all frequency and time windows, independently. For each sound, I found the mean of all the SDs for frequency and time, resulting in a spectral complexity value and a temporal complexity value. Finally I found the mean of these two values for an overall spectro-temporal complexity value. Does this sound sufficient? Thanks. -Nik Francis


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