Klarinet Archive - Posting 000669.txt from 2003/08

From: Tony@-----.uk (Tony Pay)
Subj: Re: [kl] closing the reed
Date: Tue, 26 Aug 2003 08:48:16 -0400

On Tue, 26 Aug 2003 08:09:35 -0400, musicians@-----.net said:

> > One has to ask: what do you mean by 'closing the reed'?
> >
> > You might mean that during a note, the reed closes against the
> > mouthpiece during the cycle, and that's certainly driven by
> > airpressure.
> >
>
> It's driven by the Bernoulli Effect

'The Bernoulli Effect' is an abstraction, that can't 'drive' anything.

There would be no Bernoulli effect without the airpressure difference
between the inside of the mouth and the inside of the mouthpiece. 'The
Bernoulli effect' is just a name for a quite complicated and detailed
description of what actually occurs.

We had a similar confusion of levels here when we talked about
'difference tones'. Some people thought that the variation in
amplitude associated with the sum of two sine waves was 'appreciated' by
the eardrum. And, I have to admit, I thought so too for many years.

But in fact, the eardrum is 'too busy' -- har har -- 'obeying' the
forces involved.

Tony
--
_________ Tony Pay
|ony:-) 79 Southmoor Rd Tony@-----.uk
| |ay Oxford OX2 6RE http://classicalplus.gmn.com/artists
tel/fax 01865 553339

... One person's <grin> is another's <groan>.

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