Re: Acoustic Waves

jgreenfield@xxxxxxxxxxx wrote:
<snip>



The wife's noise damper is only for machines producing a tone, or
mixture of tones, which don't vary a lot.
It's a bit curious as to how the sound of the ocean or a large crowd
seems to become a "mean" (average) tone, no matter what the
circumstances or composition of the
source(s).


<snip>

Broad-spectrum sources will be detected according to the spectral response of the detector. For incoherent detection, white audio noise will be heard according to the Fletcher-Munson curves

http://hyperphysics.phy-astr.gsu.edu/hbase/sound/eqloud.html#c1

(more or less, anyway.... YMMV)

Optically, white light will be perceived according to the photopic curve (or scotopic curve, and again, YMMV)



--
Andrew Resnick, Ph.D.
Department of Physiology and Biophysics
Case Western Reserve University
.

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