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atmAtten(Tin,Psin,hrin,dist,f... A function to return the atmospheric attenuation of sound due to the vibrational relaxation times of oxygen and nitrogen.
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5.0 | 4 ratings Rate this file 25 Downloads (last 30 days) File Size: 1.83 KB File ID: #6000

Atmospheric Attenuation of Sound

06 Oct 2004 (Updated 07 Oct 2004)

A function that returns the amospheric attenutation of sound.

File Information
Description	A still atmosphere attenuates sound as a function of frequency, temperature, relative humidity, and propagation distance. This function uses equations published by Bass et al. to calcuate the attenuation of sound for the input parameters. The function returns the attenuation in decibels.
MATLAB release	MATLAB 6.1 (R12.1)

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Everyone's Tags	acoustic, atmospheric, attenuation, chemistry, frequency, physics, relaxation, sound
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Comments and Ratings (4)
08 Oct 2004	dondee SLSU, Phil.
07 Dec 2006	Ja P	This function accurately calculates the attenuation of sound as described in ISO 9613-1 (1993). The parameter for the distance(dist or d) is given in meters. Great work.
19 Jun 2008	Alexis Billon	Very accurate. Only small inconvenient using inHg as a pressure unit
14 Dec 2009	ds

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