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Re: 1/f spectra

I have heard it said on a number of occasions that 1/f spectra are very
commonly encountered among natural signals, and one might perhaps expect
the auditory system to reflect this fact in its design
(perhaps the fact that auditory filters get wider at higher CF and are
approximately logarithmically spaced is a simple relfection of the 1/f
nature of many sounds?)
There's a bit of work on how the auditory system might have adapted to
such filters given the structure of sound.  It doesn't have an obvious
connection to 1/f spectra, but it comes up with a pretty good reason as
to why auditory filters are the way they are.

My work is more CS oriented:

Lewicki's work has more neuro-credibility, mentions 1/f in passing: