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Of unit.
Any acoustic unit of measurement.
This concept's ID is @1~68183
A unit of subjective loudness.
A unit of perceived loudness equal to the loudness of a 1000-hertz tone at 40 dB above thr...
A logarithmic unit of sound intensity; 10 times the logarithm of the ratio of the sound...
A logarithmic unit of sound intensity equal to 10 decibels.