ACOUSTICAL UNIT Crossword Clue
ACOUSTICAL UNIT Crossword Clue
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Crossword Puzzle Infos
An acoustical unit is a device that measures sound levels and is typically used in noise control applications. The term 'SONE' is a unit of loudness, which is equal to the loudness of a 1 kHz tone at 40 dB. It is used to measure the loudness of sound in a given environment.