Klarinet Archive - Posting 000275.txt from 1997/11

From: Jrykorten@-----.com
Subj: Re: Wood vibrations
Date: Thu, 6 Nov 1997 20:31:42 -0500

I am beginning to feel that the physics explaining the characteristics of
tone production in the clarinet is not taking into account the transition
from the "cylindrical bore", which has characteristics that are
mathematically tractable, to the bell which is sort of an impedance coupler
and may have more complicated behavior. Sometimes mathematical models fall
apart in boundary conditions, or they do not describe the complete picture in
a transition situation such as when vibrations travel through the bell to the
surrounding space.

I play on three different types of clarinets Buffet R-13, Leblanc LL, LX. And
appreciate each for their own characteristics. But you get major effects on
each by swapping bells.

I would hazard a guess that the different materials have their effect on tone
at the bell. That in fact some frequencies are "launched" from the surface of
the bell and are therefore influenced by the bell's material and shape.

Mr. Ridenour has designed some great clarinets, however he/they need to sell
them as well. We need to get some contributors who are not selling clarinets
in on this discussion. How about Dr. Pyne? Is he on this list? How about O.
Lee Gibson? Does anybody have their email addresses to get them involved?

Jerry Korten
NYC

In a message dated 97-11-05 09:56:36 EST, Tom writes:

<< Roger,
I can't really do that because of the relationship that Leblanc and I have
had and that information is not for me to share,..... but isn't it evident
that materials make a great difference????? To deny such a proposition here
and to affirm the obvious uniqueness of all things elsewhere (even every
snow
flake is different!!!!!)
seems to me to be a real contradiction in logic. Besides, any fool can hear
it. Good grief, even different pieces of the same genre of wood vibrate and
sound differently. It's as plain as the nose on Jimmy Durante's face....
which as some of us may remember was pretty plain.
Good night Mrs. Calabash, where ever you are.
Tom

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