Air Absorption

Calculates sound absorption (attenuation) in humid air


Updated 24 Oct 2013

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Sound absorption (attenuation) in humid air depends on frequency, temperature, relative humidity, and atmospheric pressure. This program calculates sound absorption (attenuation) in humid air using the ISO standard and the Bass forumla. The sound absorption is output in dB/meter.

Cite As

Edward Zechmann (2023). Air Absorption (, MATLAB Central File Exchange. Retrieved .

MATLAB Release Compatibility
Created with R2007b
Compatible with any release
Platform Compatibility
Windows macOS Linux
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Version Published Release Notes

Fixed a bug in the calculation of the sound speeds. The quantity, h, needed to be expressed as a fraction instead of a percentage.