ADDITIONAL TERMS

C-weighted sound exposure level: Sound exposure level, as defined above, where C-weighted sound pressure is used instead of A-weighted sound pressure. Unit, decibel; abbreviation, CSEL; symbol, LCE.

energy average: Colloquial term for time-mean-square average of the sound pressures for a series of sound signals.

energy summation: Colloquial term loosely used to indicate addition of non-coherent sound signals by the sum of the squares of their sound pressures or the sum of their sound exposures.

peak overpressure: Maximum positive pressure produced by an impulsive sound. Often used to describe the magnitude of a sonic boom, in pounds per square foot (psf). One pound per square foot is equal to 47.89 pascals or a flat sound pressure level of 127.6 decibels.



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