Klarinet Archive - Posting 000885.txt from 2000/09

From: "Mark Charette" <charette@-----.org>
Subj: Re: [kl] Correlation: Tip opening and tongue speed
Date: Wed, 27 Sep 2000 14:39:49 -0400

From: "Dave Sandusky" <daves@-----.com>
> Does playing an A = 440 Hz mean that the reed is vibrating at 440 beats
> per second?

Yes

> If so, then can one really tongue faster than that, so as
> to "overtake" the reed?

I've never heard anyone tongue _that _fast (:^) but ...

There are other properties that govern how much of a signal we need to hear
before a series of vibrations is heard as a tone rather than a "click" -
something > .001 seconds ("But, are such tones 'musical'? It seems likely
that they are clicky" - "The Nature of Musical Sound", John R. Pierce
writing about temporal tone discrimination in "The Psychology of Music"
edited by Diana Deutsch). Then there's the inertia of the reed, the length
of time it takes for the pressure wave to reach audible proportions, and the
amount of time it takes to totally dampen out the reed vibrations, coupled
with the time it takes for the pressure wave to stop.

I know I've got a reference somewhere on the pressure wave attack & decay,
but I don't remember having read anything on reed inertia. Perhaps Don
Casodonte has something in his dissertation - but I've lost track of Don.

In any case I'd like to hear someone tonguing at 100Hz! 10Hz is 600 bpm -
that's a hellacious single tongue speed!

Mark C.

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