| Re: the myth of "fast air"
Ah, Rowuk!
I see what you're driving at.
Cool!
There is another demo that was in the ITG journal in which a trombone moputhpiece was rigged witha plastic membrane is inserted just at the end of the backbore so no air can get through it, but the membrane is acoustically transparent. Then they drill a hole in the side of hte mouthpiece and insert straws of various lengths (and hence various resistances) to allow some flow.
The upshot of the demo is that the air flow doesn't even have to go through the air at all. The argument being made by the authors is that the DC component has but one function - to get the lips vibrating at all.
Don't get me wrong. I am in agreement that the fast air model doesn't really hold up, though that is a growth thing for me. Many years ago I did subscribe to that description. I no longer hold to that thinking. I am using my tongue in a specific way and holding my lips a certain way and I use a certain amount of push from the abs, but I never think of controlling the airspeed any more.
Moore, in the article, does hark to some sort of flow control thing, but I am in the dark as to how to visualize it.
OK, gotta split for now.
Nick |