Klarinet Archive - Posting 000182.txt from 2010/08

From: "Keith Bowen" <keith.bowen@-----.com>
Subj: Re: [kl] About clarinet acoustics
Date: Mon, 16 Aug 2010 19:31:31 -0400

Mike

I fully agree, and especially after reviewing the maths (in a post I am
trying to write next) I for sure agree that you cannot calculate everything!

It's interesting that some makers sell magic bells that are supposed to
improve many instruments. I had the misfortune to break my Wurlitzer bell
recently. Wurlitzer insisted that the whole clarinet was returned, in order
to tune the bell to the instrument.

best

Keith

-----Original Message-----
From: Mike Vaccaro [mailto:mike@-----.com]
Sent: 16 August 2010 22:34
To: The Klarinet Mailing List
Subject: Re: [kl] About clarinet acoustics

I manufacture clarinet bells, barrels, and mouthpieces. I use an odd old
method of trial and error, and though I have measured with a ruler the nodes

on the clarinet and retain inside and outside specs on my mouthpieces let me

say this about the bell. While not controlling the pitch or sound quality
quite as much as the mouthpiece and barrel the bell does change the whole
overtone series. An important fact to remember. If he length the bore is
extended, whether there is a step in the bell like some makers have started
doing, the length, the flair, and the amount of wood all have an influence
on the final product. I have found like mouthpieces and barrels one bell
does not improve the response, projection, and tonal colors of every
clarinet. The bell MUST be made to match the particular clarinet and its
idiosyncrasies. The bells I use on my various clarinets are not
interchangeable for the best results. Go figure? That's my best and final
answer as I understand it today.

Mike Vaccaro
www.MikeVaccaro.Com
www.MandMmouthpieces.com
www.VaccaroandStevensWoodwinds.Com

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From: "Tony Pay" <tony.p@-----.org>
Sent: Monday, August 16, 2010 2:16 PM
To: "The Klarinet Mailing List" <klarinet@-----.com>
Subject: Re: [kl] About clarinet acoustics

> On 16 Aug 2010, at 22:06, Keith Bowen wrote:
>
>> Yes. The sound velocity will increase in the flared portion - though I'm
>> not
>> sure by how much. Another reason for making the measurement to a tone
>> hole
>> in the parallel part (and applying the end correction, which is quite
>> large).
>
> Yes, the hell with THAT calculation. I think I'll just use the top half
> of the clarinet and use the simple end-correction:-)
>
> Tony
> --
>
> Tony Pay
> 79 Southmoor Rd
> Oxford OX2 6RE
> tel/fax +44 1865 553339
> mobile +44 7790 532980
> tony.p@-----.org
>
>
>
>
>
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