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  • ASA
    ASA/ANSI ASA S1.26-2014 (R2024) Methods for Calculation of the Absorption of Sound by the Atmosphere
    Edition: 2014
    $246.40
    / user per year

Content Description

This Standard provides the means to calculate atmospheric absorption losses of sound from any source, moving or stationary, for a wide range of meteorological conditions. The atmosphere is assumed to bestill, homogeneous moist air of normal composition. Non-homogeneous atmospheres can be divided into horizontal layers within which homogeneous conditions can be assumed. Attenuation coefficients for pure-tone sounds are calculated by means of equations (or a table) over ranges of frequency, and the humidity, pressure, and temperature of the atmosphere. For sounds analyzed by fractional-octave-band filters (e.g., one-third-octave-band filters), alternative methods are provided in annexes to calculate the attenuation caused by atmospheric absorption from that specified for pure-tone sounds.

About ASA

 To generate, disseminate, and promote the knowledge and practical applications of acoustics.
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