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A history on acoustics

A history

The word "acoustic" is derived from the Greek word akoustikos, meaning "of or for hearing, ready to hear" and that from akoustos, "heard, audible", which in turn derives from the verb akouo, "I hear". The Latin synonym is "sonic". After acousticians had extended their studies to frequencies above and below the audible range, it became conventional to identify these frequency ranges as "ultrasonic" and "infrasonic" respectively, while letting the word "acoustic" refer to the entire frequency range without limit.