|Sound & Hearing|
Two Ways to Look at Sound
This exhibit shows why you can tell the difference between two instruments even though they are playing the same frequency note. In essence different instruments play different amplitudes of overtones, musicians say that the timbre of the note is different on the different instruments. The exhibit also shows people the frequency content of a sound, it is in essence a sound spectrometer. It is particularly instructive to look at the frequency content of sung vowels, this leads into a discussion of the formant frequencies in the human voice.
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