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normalized noise reduction

10.45  normalized level difference; normalized noise reduction. Level difference between rooms plus ten times the logarithm to the base ten of the ratio of the reverberation time in the receiving room to reference reverberation time of 0.5 s. Unit, decibel (dB); abbreviation, NNR.

Related Articles:
  • Standards Terms: normalized level difference
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Related Terms:
  • Term: normalized level difference
  • Term: reverberation time
  • Term: level difference
  • Term: noise reduction
  • Term: reverberation
  • Term: decibel

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