The theory behind sound is very simple – waves are just added up, so the amplitude of two exactly identical waves is doubled, if one of them is shifted by pi radians they cancel and the amplitude becomes 0, if it’s shifted by less or more then a pattern is created that causes periodic pulses of sound. However, in everyday experience, this is practically nonexistent. If the “valleys” of sound waves subtract from the “peaks” of other sound waves, and if waves spend half of their time in a valley, I’d expect that exactly half of the time sounds would cancel each other, but I’ve literally never experienced anything other than more sounds = higher volume, not even in an orchestra with many people playing the same note. What gives?
In: Physics
Apparently you’ve never experience comb filtering in a live concert application. It can be *very* apparent.
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