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----- Original Message -----
From: "Mike Richter" <[log in to unmask]>
> At 11:33 PM 2/2/2005 -0500, Steven C. Barr wrote:
> >But don't ordinary volume controls use an "audio taper?" If you used an
> >ordinary potentiometer, where resistance is in direct proportion to
> >shaft travel, how would our ears and mind react?
>
> There is no signficance to the audio taper; one simply sets a level for
the
> listening purpose at hand. The issue is change of the ear's sensitivity to
> the spectrum as a function of level. That is not affected by the linearity
> or deliberate non-linearity of the level control.
Agreed...but don't the audio taper and loudness controls attempt to
compensate
for the way the ear/mind works by varying the signal in non-linear ways...
either by varying only the signal level to approximate what is heard as
the control is adjusted, or varying the actual frequency response to
approximate
the response of the ear? If you used only a straight potentiometer...no
taper...
would you wind up with most of the volume variation at the lower end of the
control?
Steven C. Barr