Subject: Re: two cycles From: Kelly Fitz <kelly_fitz@xxxxxxxx> Date: Fri, 3 Nov 2006 15:19:26 -0800It does not (I think) specifically address this point, but the method described in Gardner and Magnasco's paper "Sparse time-frequency representations", see http://www.pnas.org/cgi/reprint/0601707103v1 is offered as a possible explanation for the "remarkable acuity of auditory perception". As a signal processing algorithm (that is, mathematically), under the right conditions, the reassignment method can give quite precise estimates of the frequencies of resolvable components given only two fundamental periods. Perhaps this paper is of interest? cheers, Kelly Fred Herzfeld wrote: > Can anyone point me to literature which shows how the auditory system > performs the "two cycle" feat, or to papers which show how such a "two > cycle" feat might be acomplished mathematically or to any papers of a > more recent origin which discusses this ability. > > Thanks, > > Fred -- Kelly Fitz, DSP Research Engineer Starkey Hearing Research Center