Klarinet Archive - Posting 000172.txt from 2010/08

From: Jennifer Jones <helen.jennifer@-----.com>
Subj: Re: [kl] About clarinet acoustics
Date: Mon, 16 Aug 2010 18:06:56 -0400

On Mon, Aug 16, 2010 at 2:57 PM, Tony Pay <tony.p@-----.org> wrote:
> On 16 Aug 2010, at 22:40, Keith Bowen wrote:
>
>> The end effect must be taken into account as it can bemore than the dist=
ance between tone holes. The correction formula is on page 450 of Benade (F=
undamentals of Musical =A0 =A0Acoustics) and is also given in my masters' t=
hesis that I sent you recently.
>
> Actually, that equation didn't make it through the system; I should proba=
bly have told you that before. =A0It just says:
>
> "The acoustic length is longer than the physical length to the last close=
d tone hole by the amount
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 __________________
>
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 _ =A0 =A0 =A0 _ =A0 =A0 =A0 =A0 _
>
> where z is the distance to the next open tone hole, d is the diameter of =
that tone hole, D is the bore diameter at the open tone hole and t is its d=
epth. h is a factor that may be taken as 0.75 for a completely open hole an=
d 1.0 for an average padded hole."
>

I don't think the equation made it through. Would you send it again?

-Jennifer
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