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22. A clarinet sounds the same note as in the previous problem,
370 Hz. It, however, produces harmonics that are only odd
multiples of the fundamental frequency. What are the frequencies
of the lowest three harmonics produced by the clarinet?
Furthermore 370 Hz is waaaay above the fundamental for an ordinary clarinet.
The instrument isn't anything like a simple tube at this frequency. I'll
betcha there is plenty of energy at even-numbered multiples of 370 Hz.
2. When you blow across the top of a soda bottle, a puff of air
(compression) travels downward, bounces from the bottom, and
travels back to the opening. When it arrives (in less than
a millisecond), it disturbs the flow of air that you are
still producing across the top. This causes a slightly
bigger puff of air to start again on its way down the bottle.
This happens repeatedly until a very large and loud vibration
is built up that you hear as sound. The pitch depends on the
time taken for the back and forth trip. What happens to the
pitch as liquid is added to the bottle?
Uhhh, does it really take only 1 ms for air to make a round-trip in a
soda bottle? That must be a really small soda bottle. For that matter,
why mention this number at all?
I've never seen a musician categorize instruments as open-pipe
instruments versus one-end-closed instruments, or as cylindrical
versus conical instruments.