Klarinet Archive - Posting 001147.txt from 1999/05

From: "Dee D. Hays" <deehays@-----.com>
Subj: Re: [kl] Bradley's Question
Date: Tue, 25 May 1999 23:11:01 -0400

I did see an article on this but unfortunately can't remember where. The
gist of it was that it is only in recent years that the spectrum analyzers
have been good enough to indicate that even number partials are present.
They are very, very weak and so for the practical purposes of playing they
can be considered non-existent.

Dee Hays
Canton, SD

-----Original Message-----
From: Anne Bell <bell@-----.net>
Date: Tuesday, May 25, 1999 7:27 AM
Subject: Re: [kl] Bradley's Question

>In reply to Jim Pyne's answer to Mark Bradley's question:
>Thank you for a great summation. You mention:
>
> The clarinet, as a "closed pipe", produces only the odd numbered
>>partials (1,3,5,7...) in the form of overblown tones. However in the
>>SPECTRUM (timbre) of clarinet tones this is NOT true. Odd and even
>>(1,2,3,4,5...) partials are present, though the even partials are somewhat
>>subdued in the chalumeau.
>
>Could you share the (average or sample) percentages of partials present in
the spectral analysis of clarinet tone? Is the percentage of even partials
significant or could they be primarily the result of sum and difference
tones. I've wondered about this for some time but haven't had access to the
equipment necessary.
>Best Wishes,
>Anne Bell

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