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This month's Challenge Question: Specs & Techs from
GlobalSpec:
Everybody sings in
the shower. When we sing in the shower our voice sounds strong and beautiful
even if we do not have the vocal structure of Pavarotti. Why is this?
And the answer is:
A strong and beautiful voice makes use of the resonance
where it is produced. Resonance is the key. A bathroom is in fact a resonator.
Resonance can be produced in the shower in three directions: floor to ceiling,
front and back wall, and between two side walls. When we sing in the
shower a standing wave can be produced in any (and all) of these three
directions. For the fundamental frequency an antinode at each end and a node at
the center in that direction are formed. For the second harmonic (twice the fundamental
frequency) three antinodes (at the ends and the center) and two nodes (at ¼ and
¾ distance) are formed. For the higher order harmonics we see the same
pattern. To produce this standing wave, the shower singer must move in
order not to be standing in a node; by selecting the proper location
inside the shower our voice will be strong (without having to scream; the
resonator helps us) and pleasing if we are located at the antinode of the
fundamental or at antinodes of harmonics.
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