Posted by Yes on February 13, 2004 at 10:42:04:
In Reply to: Re: Re: Re: Re: Re: Low register dynamics posted by volume is... on February 12, 2004 at 23:41:22:
Air passes through the throat of the mouthpiece faster.
I am convinced though that for the pitch to remain constant, as the volume of air increases, the lip aperture must widen accordingly.
Consequently, you do not blow faster to play louder (as such), you simply shift a greater volume of air through a larger hole. Once we get to the mouthpiece throat (non-variable) that changes somewhat.