A-Weighted
A-Weighted : A standardised frequency response in dB(A) used in sound measuring instruments and corresponding approximately to the human ear response. An 8 Hour Equivalent Continuous A-Weighted Sound Pressure Level of 85 dB(A) means the actual energy of varying noise levels experienced over a period that is equivalent to an 8 hour continuous steady A-weighted sound pressure level of 85 dB(A)
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