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Re: Vibrating air column concept

Author: stevesklar
Date: 2022-09-06 05:19

Basically airflow allows us to test the air tightness of the pads whether from the player's sensitivity or a magnehelic machine.

The varying sized toneholes, etc creates a consistent pressure and backpressure.
This supports those tests you read about.

Your air leak identifies the same problem the experiments would have, if those instruments had the same leaks. But your air pressure can also induce leaks as I mentioned in other thread such as a weak spring in the Ab throat or lower Eb pinky key as those two are common checks). Players can vary their pressure and playing to compensate for some problems. For instance a leaky pad can be compensated for by using more finger closing pressure to eliminate a leak.

The register pip is a bit different though. If it was too large it can reduce the backpressure too much and cause the reed to slap shut and squeak. As it enlarges then becomes a tonehole like the trill keys are.

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Stephen Sklar
My YouTube Channel of Clarinet Information

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