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community noise equivalent level

3.20  community noise equivalent level. On a given day of the week, twenty-four hour-average A-weighted sound level after addition of 5 decibels to sound levels from 1900 hours to 2200 hours, and after addition of 10 decibels to sound levels from midnight to 0700 hours and from 2200 hours to midnight. Unit, decibel (dB); abbreviation, CNEL; symbol Lden.

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  • Term: level
  • Term: decibel
  • Term: noise
  • Term: sound

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