ambient noise

8.09  ambient noise. All noise that would be present in the absence of the measuring equipment and its deployment platform, and (for an active sonar) in the absence of reverberation from the sonar transmitter.

Annotation                      See also 2.33.

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Alternative Meanings:
  • ambient noise
    2.33  ambient noise. All-encompassing sound at a given place, usually a composite of sounds from many sources near and far. Annotation 1                  When the intent is to measure or record a specific source or signal, the ambient noise does not include sounds of interest. Annotation 2          See also 8.09.
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