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IEVref:801-31-36ID:
Language:enStatus: Standard
Term: average sound pressure level in a room
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Definition: in decibels, ten times the common logarithm of the ratio of the space and time average of the sound pressure squared to the square of the reference sound pressure, the space average being taken over the entire room with the exception of those parts where the direct radiation of any sound source or the near field of the boundaries is of significant influence


Publication date:1994-07
Source:ISO 140/3
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