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Title: Sound Pressure Level Determination
Author: Ernest E. Allen
Source: 1974 Gulf Coast Measurement Short Course (Now called ASGMT)
Year Published: 1974
Abstract: Noise fields present in industrial environments are frequently generated by more than one source. The validity of sound pressure level (SPL) measurements for quantification of the noise contribution of individual or specific sources in sound environments containing more than one source is dependent on the relative acoustic power and location of the individual sources. The microphone, the sensing element, of a sound level meter responds to all sound pressure incident on its diaphragm.

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