Klarinet Archive - Posting 000482.txt from 2001/02

From: Bill Hausmann <bhausmann1@-----.com>
Subj: Re: [kl] Re: strange intonation in warm up exercise
Date: Tue, 13 Feb 2001 06:21:30 -0500

At 06:34 PM 2/12/2001 -0800, William Wright wrote:
> If two devices (eg.: ear and tuner) pay attention to different
>aspects of the same phenomenon, the results will be different.
>Different aspects of the same phenomenon produce different perceptions.
>That's what I'm saying.
>
> To use technical photography as an example (which I know quite
>well), the human eye and the light meter do not measure exactly the same
>details of the incoming light, and therefore different corrections to
>the meter's reading are necessary depending on the situation.
>
> Same light waves, but different perceptions of what's out there.
>
> Infrared photography is an even more extreme example of this, where
>what's 18% gray to the eye may be either burnt-out white "D max" glare
>or pitch black "D min" darkness to the film, or anything in between ---
>again depending on details that the human 'measuring device' doesn't
>see.
>
> The goal, of course, is for the meter (or tuner) to mimic the human
>'device' as closely as possible. But each device, human ear or
>electronic meter, sees/hears something at least a little bit different.
>
> I'll let you have the last word.

OK, if you insist. :-) You are correct. The goal of the tuner designer
probably IS to make it mimic the ear closely. Since the phenomenon to be
measured is only relevant to the ear, this only makes sense. It is not
unlike (to use your photography metaphor) the invention of panchromatic
film to get the camera to respond to different colors of light in a manner
proportionally similar to the way the eye does (and UNLIKE the infrared film!).

Bill Hausmann bhausmann1@-----.com
451 Old Orchard Drive http://homepages.go.com/~zoot14/zoot14.html
Essexville, MI 48732 ICQ UIN 4862265

If you have to mic a saxophone, the rest of the band is TOO LOUD!

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