Author: mschmidt
Date: 2009-10-27 01:33
There's a problem with your drawing. The problem is that there is no linear airstream outside the reed. Your mouth is a high-pressure reservoir of air that is mostly immobile. It only starts moving rapidly near the reed opening, and near the opening it will move in the most efficient way possible (mostly converging), regardless of the orientation of the reed.
If you suck up a drink through a straw, it doesn't matter which direction the straw is pointed, as long as the bottom or sides of the glass aren't partially closing off the opening of the straw. Now, you may think that it's a different thing, because you're sucking rather than blowing, but it's not, really. In both cases, blowing through a reed or sucking through a straw, you have a high pressure reservoir (the mouth your reed is in, or the drink in the glass) and a low pressure reservoir (the atmosphere outside the oboe, or your sucking mouth). The high-velocity directional stream only occurs through the narrow constriction of the oboe reed or the straw that separates the high and low pressure reservoirs.
Mike
Still an Amateur, but not really middle-aged anymore
Post Edited (2009-10-27 01:38)
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