Klarinet Archive - Posting 001366.txt from 1999/05

From: Roger Garrett <rgarrett@-----.edu>
Subj: Re: [kl] Even Partials (was Bradley's Question)
Date: Sat, 29 May 1999 20:59:19 -0400

At 07:18 PM 5/29/99 -0400, you wrote:
>>FROM MY EARLIER POST - The clarion and altissimo registers have powerful
>>even >partials. In some cases showing peaks higher than their odd numbered
>>neighbors. The >chalumeau register (especially low chalumeau) shows more
>>suppression (not >elimination) of even partials, especially partial 2 and
>>to a lesser degree 4 and 6. >However, as we certainly know, the clarinet
>>will not cooperate in overblowing at the >frequencies of these even
>>partials.
>Finally, I have observed and documented strong even-partial content in the
>playing of many performers, on many clarinets, in all registers, and with a
>number of hi-level measurement systems. I can reproduce my findings. The
>results seem satisfactory to acoustics researchers. I'll have to rest my
>case on that.
>---Jim Pyne

I was very much hoping that Jim Pyne would respond to the questions posed
to him regarding the strong opinion that the overblown A (that he mentioned
in his earlier post as being an example of his argument) is actually a very
flat Bb and, therefore, is not a very strong example supporting his arguement.

If the above post is dealing with that, and I can't see how it actually
does in a way that the average person could understand, then I wonder if he
might readdress that issue before he rests his case.

Thanks.
Roger Garrett
Professor of Clarinet
Director, Concert Band/Symphonic Winds/Titan Band
Advisor, Recording Studio
Illinois Wesleyan University
Office: (309) 556-3268
Fax: (309) 556-3411

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