Klarinet Archive - Posting 000036.txt from 2010/12

From: Fred <vze2bsbs@-----.net>
Subj: Re: [kl] Snake Charmers
Date: Fri, 03 Dec 2010 14:22:59 -0500

Now could you calculate the coefficient of friction necessary to
exist at the clarinet's joints to prevent the clarinet from flying
apart at these speeds?

I always have been obsessed with that thought.

Fred

At 01:11 PM 12/3/2010, you wrote:
>This sort of factual commentary is exactly why I have kept my
>subscription to Klarinet all these years!
>
>:~)
>
>Joseph D. Vaccarino
>clarinet@-----.com
>
>On Dec 3, 2010, at 1:05 PM, Tim Roberts wrote:
>
> > "Jim Lytthans" <lytthans@-----.net>
> >> I've been reading the many, many comments on moving clarinetists. My real
> >> issue with over-done movement with wind players is the Doppler
> effect. I can
> >> hear this moving train pitch shift on recordings of clarinetists
> especially,
> >> and also with flutists and oboists.
> >
> > My initial reaction was to scoff at this. Intuitively, it seemed
> > impossible that a clarinetist could generate enough speed to Doppler
> > shift the pitch to a detectable degree. Being an engineer, I decided to
> > run the numbers.
> >
> > I read that a frequency difference of 0.3% is detectable by the human
> > ear. Running that through the Doppler equations, it would require a
> > velocity of 0.5 meters per second to generate that difference.
> >
> > So, I no longer scoff. It's quite possible for an over-enthusiastic
> > player to move their bell at a rate higher than 0.5m/s.
> >
> > --
> > Tim Roberts, timr@-----.com
> > Providenza & Boekelheide, Inc.
> >
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>
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