Quote:
Originally Posted by westview1900  Dear Rowuk,
I love your well thought out explanations. You have obviously studied this subject in depth. Would you say that the pressure increase or decrease directly affects the speed of the air? |
I would say that any change in air "speed" would be neutralized by the resonant system. The only "speed" that changes is the speed of sound for the lips based on the pressure behind and in front of the lips. They vibrate (open and close) based on that pressure state.
Here is something to maybe help the visualization:
Play a low C as loud as you can - count the seconds. Then do the same thing 2 octaves higher. If your air is faster, you run out of air sooner, but it just ain't happening. You can hold the high C out MUCH longer!