 The Clarinet BBoard
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Author: WhitePlainsDave
Date: 2017-05-24 15:45
Other than to help hold a particular distance between the barrel and upper joint, I've heard that tuning rings aid in, addition to intonation, sound production.
Do others agree and if so, why might this be the case? What principles might be at play in filling in the gap on the outside of the sound chamber? Do the rings aid in "keeping the sound in?"
And if useful, do materials matter, as I've seen them sold in metal, plastic and rubber? In fact does something stop me from using similar rings from the Plumbing Aisle of a Big Box store?
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Author: jthole
Date: 2017-05-24 17:26
Here might be all you want to know (and more): http://test.woodwind.org/clarinet/BBoard/read.html?f=1&i=124805&t=124783
The only place where I would personally use them (and do use them on my outdoors clarinet, a Yamaha 250) is between the upper and lower body joints.
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Author: Ed Palanker
Date: 2017-05-24 17:36
A tuning ring is so thin I'd find it hard to believe it would effect the sound. I've use them from time to time and never noticed any difference. EVER!
ESP eddiesclarinet.com
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Author: TomS
Date: 2017-05-24 18:11
I like using tuning rings ... at the barrel, center joint and sometimes the MP. They help prevent water from collecting in the joint gap, assure a repeatable "pull" amount and improve mechanical stability. As far as tuning ... not sure ... for very large pulls, I suspect the gap may have some acoustical artifacts.
I think the original Moennig barrels had a deep socket for the MP, leaving a substantial internal gap. (??) So ... maybe designed as a system, incorporating a gap might even be a good thing?
I have found that most tuning rings do not fit precisely in the joint socket, leaving it to shift and partially block the bore (maybe a few thousandths of an inch ...). IMHO, tuning rings need to be custom fitted to each instrument.
Tom
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Author: WhitePlainsDave
Date: 2017-05-24 19:44
Thanks Johan.
FWIW, out of respect for people's time and the moderator's server space, I had searched that post just prior to this thread.
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Author: Burt
Date: 2017-05-25 18:34
Pulling out between any two joints creates a discontinuity in the bore. The tuning ring does a good job of minimizing this discontinuity. I have never tried to determine whether the effect is audible.
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Author: WhitePlainsDave
Date: 2017-05-25 19:11
Burt: that's the part I don't get: a discontinuity in the bore...
maybe you mean the thickness of the bore, as the place where you pull out, where one can see only tenons, clearly has a smaller diameter than the black outer circumference of the clarinet.
And perhaps tuning rings serve to fill that gap...?
.
Post Edited (2017-05-25 22:30)
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Author: Burt
Date: 2017-05-26 19:27
Dave, the discontinuity that counts is the one in the air path. If you pull out and don't use a tuning ring, the bore increases by a large fraction of a centimeter for a distance of however far you pull out. The tuning ring has an inner diameter nearly equal to the clarinet bore. So it pretty well fills the gap.
I don't think the outer diameter of the clarinet is relevant, or that the discontinuity has any impact.
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Author: Ursa
Date: 2017-05-26 23:23
I've used tuning rings, and find that they're only with bothering with when deployed between the upper and lower joint. Tuning accuracy and response are improved when using a ring there versus just pulling out--but I've yet to notice an audible difference.
As far as using them on either socket of the barrel, I don't note enough difference there to merit the extra effort.
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