 The Clarinet BBoard
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Author: Sylvain
Date: 2006-09-24 21:49
An interesting old thread explained in great detail why a slightly smaller bore at end of a barrel compared to the top end bore of the clarinet may be enhancing the clarinet sound.
http://test.woodwind.org/clarinet/BBoard/read.html?f=1&i=91458&t=91458
I was wondering what the experts thought about it and also what they think about matching the exit bore of a mouthpiece to entrance bore of a barrel. I have done my own experimenting but I do not have tools to measure or work on barrels/mpce to really se what works.
As a side note, I play RC clarinet, is the top joint bore identical to R13s or am I just playing eith the wrong tools when using Chadash or Moennig barrels?
Thank you
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Sylvain Bouix <sbouix@gmail.com>
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Author: Gregory Smith ★2017
Date: 2006-09-24 22:08
The only thing the Chadash does differently than the Moennig is that another "choke" is put higher up within the tube of the barrel - unlike the Moennig that simply puts the "choke" at the point where the exit bore of the barrel meets the entrance bore of the top joint. That's why the Moennig is referred to as a straight taper and the Chadash is not.
BTW, the Buffet version of the Moennig barrel is not the same as the original Moennig hand made bores/barrels. It's only their version. They would have had to use the exact same reamer to get the same exact results.
You may also want to go to this thread as it discusses the issues you're asking about:
http://test.woodwind.org/clarinet/BBoard/read.html?f=1&i=225605&t=225605
Gregory Smith
<http://www.gregory-smith.com.
Post Edited (2006-09-24 22:11)
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Author: Alseg
Date: 2006-09-24 23:42
This is why the use of a simple bore gage does not tell the whole story.
The simple gage can measure the top and the bottom but NOT what happens in the middle. The taper can be parabolic, hyperbolic, stepwise, or variations of these.
Former creator of CUSTOM CLARINET TUNING BARRELS by DR. ALLAN SEGAL
-Where the Sound Matters Most(tm)-
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Author: Gregory Smith ★2017
Date: 2006-09-25 00:48
Of course Alan has encapsulated things more succinctly than I ever could. Must go with being a surgeon. ;^)
Gregory Smith
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Author: Sylvain
Date: 2006-09-25 14:25
OK, on another about R13's, it seems that bore sizes have changed over the years. I believe in science and music.
So although I understand one should ultimately choose a barrel by the way it feels and sounds, science tells me that a barrel designed for a certain mouthpiece clarinet combination may not work as well for all clarinets and all mouthpieces.
For example, my Chadash Hill mouthpiece seems to have a smaller exit bore than my Zinner (Behn and Livengood) or Vandoren mouthpieces.
Similarly, I know my Bb and A bores are different and I suspect my RC prestige Bb bore to be different than GBK's favorite vintage R13 which is likely different than the latest R13 models on Muncy's shelves.
It seems to me that if a few microns make big differences as mentioned in other threads, there is no way a barrel can be made for me without measuring my horn/mouthpiece bores. Or am I really splitting hairs and a barrel can be made independently of clarinet bore designs?
How do you barrel/mouthpiece makers account for that?
--
Sylvain Bouix <sbouix@gmail.com>
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Author: Alseg
Date: 2006-09-25 16:45
Most folks who do this kind of work have a crib sheet of dimensions of the more common mouthpieces and clarinet designs.
I have a "stable" of mouthpieces for comparison (Greg Smith, Behn, Grabner, Vandoren, Selmer, Chedeville, Chris Hill etc) and always ask the client what they are using. When my old R13 was no longer representative of newer models, I got a new one, and wound up switching allegiance from my Selmer Recital to the R13 as luck would have it (Thank you, Walter.)
Along the way I purchased, measured, then sold some popular horns.
The tenon widths can also vary greatly, esp. in the eefers.
When faced with an "unknown," I ask for the instrument itself or at least a barrel from it. I did this recently with a Rossi Bb and A and a Patricola Eb horn. The Bb and Eb worked fine with only the barrel as a model. The Rossi A barrel I made was a dud, and was redone and just shipped out. If the second effort doesnt work, I will need the horn itself or have to refund the purchase.
For measurements of the interior, a T-gage is a good starting point , but a Mititoyo or Fowler digital interior comparitor is smoother, and less time consuming....and a lot more costly. (And then there are lasers connected to computers....dream on.)
to add insult to injury, my Fred V Fowler caliper died and has to go back to Newton Mass. for repair.
Former creator of CUSTOM CLARINET TUNING BARRELS by DR. ALLAN SEGAL
-Where the Sound Matters Most(tm)-
Post Edited (2006-09-25 21:31)
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