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Re: Vibrating air column concept

Author: stevesklar
Date: 2022-09-06 03:18

You might want to replace your barrel with a spirometer so you can measure the air flow that you are breathing from your lungs just to confirm that it doesn't disappear into thin air after exiting the mouthpiece during its open/closed phases.

This may help https://newt.phys.unsw.edu.au/jw/clarinetacoustics.html#pff

it does mention blowing harder and using harder reeds to prevent the reed from locking shut. But you have to vary depending upon reed opening, reed strength, etc (check athletic and medical articles). Having Spirometers I can tell you when you breathe out there is air flow going out of your lungs and into whatever environment you are breathing out of and into.

In the articulation section they get into more detail
https://newt.phys.unsw.edu.au/jw/articulations.html
be careful to differentiate Pressure Pulse, from Pressure from AirFlow.

Truthfully to me all the articles doesn't answer your question which really is where does your air go that you are breathing out and how does that affect the playability of the instrument. That is different from what the articles are testing (even though they use an air pump, although they add a shaker which a regular player is not using).

If you have a very open throat your airflow pressure is less than if you have a more closed throat. But when you breathe out you stimulate the reed. But you are doing this with your airflow. When the reed cycles open/closed the air pressure in your mouth exits into the instrument. But since you are continuously breathing out you are maintaining the air pressure in your mouth that is cycling the reed. This until your lungs run out of air and you breath in again and start the cycle all over.

==========
Stephen Sklar
My YouTube Channel of Clarinet Information

Post Edited (2022-09-06 03:35)

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