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Re: ***SPAM*** Re: [AUDITORY] Auditory wheel
So, if you're prepared to accept that a sampling of people with
perfect pitch (which represents roughly 1 in 10000 of the population)
is a valid sample of general perception then I guess that's it then.
Since there doesn't seem to be the equivalent which I suppose is
"perfect 'color" and that the general population can figure a color
wheel (excepting of course those unfortunate to be color blind, etc)
then it seems the use of APers is intrinsically skewing the
perception, since by definition they are "different".
This question seems to be very similar to another that is close to my
heart - that is the judgement of an audio systems 'fidelity'. Take
ten different pairs of $5000 loudspeakers and ask 20 people to score
them on fidelity.... Fidelity is one of those intangible (and
subjective) criteria that is impossible to measure. You might get a
consensus but there is no "right" answer.
On Mar 19, 2010, at 11:42 AM, Martin Braun wrote:
Dear Michael, and others,
all the problems with Shepard tones that you mentioned disappear at
once and completely, if you take experimental subjects that have
absolute pitch (APers). See below:
I considered Shepard tones in rhythm as well as Risset's variants in
pitch. From a preliminary trial, it seemed difficult for subjects to
determine consistent perceptual boundaries in the cycle.
APers have perceptual boundaries that are as stable and as
automatic as color boundaries in the general population.
We're interested where people innately segregate sensory inputs
along the wheel, be it in vision or audition.
Exactly this is what APers do.
With color, these boundary determinations are quite repeatable.
With sound, Shepard tones seemed to make the problem quite
difficult; it may simply be, however, that subjects were given
More exposure would not help. But with APers you will see that the
boundaries will probably be even more precisely repeatable than
with the color wheel.
Neuroscience of Music
S-671 95 Klässbol
web site: http://www.neuroscience-of-music.se/index.htm
Subject: Re: Auditory wheel
From: "Michael H. Coen" <mhcoen@xxxxxxxx>
Date: Thu, 18 Mar 2010 19:17:36 -0500