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January 26, 2015 - 7:14am
#1
Pop Quiz, Water Bowls in front of speakers
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Playing hard to get, eh. OK, Then here's a few hints. First, it's got nothing to do with humidity. Second, it's got nothing, or at least very little, to do with the reflection of sound waves off the surface of the water.
Geoff Kait
Machina Dynamica
Is it the coldness of the water that acts to cause the air in front of the speaker to slightly condense, thus transferring more energy from the loudspeaker
The cold water actually slows the bottom portion of the acoustic wave near the floor (speed of sound slower in cold air), forcing the top portion of the wave to "break" or curl downward toward the listener. Analogous to why a wave breaks on the shore when the bottom of the wave is slowed by the friction of sand on the beach.
Geoff Kait
Machina Dynamica