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IEVref:801-22-11ID:
Language:enStatus: Standard
Term: time-average sound pressure level
Synonym1: equivalent continuous sound pressure level
[Preferred]
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Definition: logarithm of the ratio of a given root-mean-square sound pressure, during a stated time interval, to the reference sound pressure. Average sound pressure level in decibels is 20 times the logarithm to the base ten of that ratio

NOTE – Unless otherwise specified, the reference sound pressure for airborne sound is 20 μPa.


Publication date:1994-07
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