Klarinet Archive - Posting 000001.txt from 2007/08

From: X-BakerBotts-MailScanner-tom.henson@-----.com
Subj: RE: [kl] Re: Clarinet Manufacture - Differences between French and German - Wood is a "Living" Material
Date: Wed, 01 Aug 2007 18:17:38 -0400

Is this scientific enough for you Forest?

US Patent # 190254 filed on 7-5-2002.

Please note the following description of the patent below in quotes. I
also found many hits on Google describing various methods to evaluate
the resonance of wood, even when it is still a growing tree planted in
the ground. It took all of 5 minutes to find this information readily
available on the web, one article coming from the Acoustical Society of
America no less.

"Modes of body vibration and the resonance frequencies in the body
vibration spectrum can be modeled by finite element analysis (FEA) or
with more accuracy, by testing. A simple but effective test method for
instrument body resonance spectrum analysis is the impulse or "tap"
test. "

Here is the weblink for the patent:

http://www.patentstorm.us/patents/6787688-description.html

Here is a Google search which has much information about "tap" testing
wood for resonance characteristics.

http://www.google.com/search?hl=3Den&q=3Dtap++testing+wood+musical+resona=
nce

Tom Henson

=20

-----Original Message-----
From: Forest Aten [mailto:forestaten@-----.com]=20
Sent: Wednesday, August 01, 2007 3:45 PM
To: klarinet@-----.org
Subject: RE: [kl] Re: Clarinet Manufacture - Differences between French
and German - Wood is a "Living" Material

I'm going to back out of this thread now, because I understand how much
tradition and inertia is involved here, but I don't believe that tapping
on a clarinet blank would be any more satisfying or revealing than
tapping on an 8 foot 4x4.

--
Tim Roberts, timr@-----.com
Providenza & Boekelheide, Inc.

Tim,

You should stay....we all need the huge dose of reality you offer up.=20

I just love, when people on the list, in one post, talk about the "best,
brightest..etc, engineering available in the clarinet manufacturing
field...and then in another post...bring such voodoo, as "tapping" the
wood
stock of clarinets..to determine if it's going to resonate. Resonate
how,
when, why is it important...is it important? Tap, tap, tap.... :-)
Anyone
home?

I wish you would stay and keep talking about this in simple engineering
terms. People need your help!

Thanks

Forest

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