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8 Cards in this Set
- Front
- Back
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How do single and double reeds general work? |
They act like a valve in which high pressure air from the player's mouth goes into the instrument with a series of pulses to initiate and maintain oscillations in the tube. |
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What happens when there is high pressure in the mouthpiece? |
It creates a Bernoulli Effect in which the pressure inside the mouthpiece has risen to its maximum and this forces the reed to its most open position and increase the flow rate. |
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What happens when the pressure inside the mouthpiece falls below atmospheric? |
The reed closes and air flow is cut off. |
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Why do conical tubes play the same sequence of harmonics as open ended tubes? |
The pressure amplitude decreases as the distance from the tip of the cone increases. |
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Draw out how air flows for flutes. |
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What happens when the key holes are smaller? |
Smaller key holes don't act fully as an open end instrument because it lengthens the resonating waves. |
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Define overblowing. |
To achieve higher notes, one may force the air column to sound its second harmonic an octave higher from the fundamental. |
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What is the iedgetone principle? |
Directing air on an edge, causing it to oscillate. |
