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ANSI/ASA S1.26-2014 (R2019)

Methods for Calculation of the Absorption of Sound by the Atmosphere

This Standard specifies an analytical method to calculate the attenuation of sound as a result of atmospheric absorption for a variety of meteorological conditions when the sound from any moderate amplitude source propagates through the atmosphere. The calculation method of the Standard applies for molar concentrations of water vapor in the atmosphere from less than 0.005 percent to greater than 5 percent and for ratios of the frequency of the sound to the atmospheric pressure from as low as 4 × 10-4 Hz/Pa (40 Hz per atmosphere) to as great as 10 Hz/Pa (1 MHz per atmosphere).

CONTENT PROVIDER
Acoustical Society of America [asa]

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