Sound 1


Sound 1 : (1) (Acoust) An alternation of pressure or particle displacement propagating in an elastic medium. Note: Sound waves from 1 to 16 Hz are called infrasonic; from 16 to 20,000 Hz, sonic; above 20,000 Hz, ultrasonic. (2) (Psych) An auditory sensation perceived by the ear. See: Hearing
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