Subject: Re: errors in harmonic chord identification From: "John K. Bates" <jkbates(at)COMPUTER.NET> Date: Mon, 19 Sep 2005 15:44:49 -0400Eckard, It's interesting that you bring up the point of Seebeck, Ohm, Helmholtz, and the missing fundamental. I refer to "The neuronal representation of pitch in primate auditory cortex." by Daniel Bendor and Xiaoqin Wang in the August 25 issue of Nature. They demonstrate that the missing fundamental is a valid neural percept and is not an hallucination as was implied by Ohm and Helmholtz in order to justify their dismissal of Seebeck's experiment. This paper is also summarized in "Finding the missing fundamental." by Robert Zatorre in that same issue. It seems that after 150 years the lack of a general theoretical explanation for the missing fundamental, as well as all other pitch-related phenomena, says that something is wrong in the Helmholtzian signal processing paradigm. Now let's try Seebeck's approach. Something completely different. John Bates >Robert Gjerdingen wrote: > > > Currently the very best software for comparing the actual pitch > to the > > ideal pitch is known as a musician :) > >Because pitch is a perception, the ultimate judge will ALWAYS be the human >ear-brain system. Already Seebeck was wrongly blamed wrong for the sake of an >immature theory. >(Recall: Ohm dismissed Seebeck's discovery of an audible missing fundamental, >and Seebeck 1844 replied that the word illusion was inappropriate since >only the >ear could decide how tones should be heared.) > >Having suggested a joint autocorrelation mechanism including a real-valued >first >cochlear analysis as well as a subsequent also real-valued analysis within >brain, I would appreciate any study or comment on the possibility that the >predominant physical correlate to pitch is not really frequency but something >like autocorrelation lag. >I just amended >http://iesk.et.uni-magdeburg.de/~blumsche/M277.html >Be not mislead by further imperfections. My basic ideas might nonetheless be >correct. > > >Eckard Blumschein -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.344 / Virus Database: 267.11.3/106 - Release Date: 09/19/2005