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Acoustics [+]

attenuation of sound during propagation outdoors. Part 1, Calculation of the absorption of sound by the atmosphere = Acoustique : attenuation du son lors de sa propagation à l'air libre. Partie 1, Calcul de l'absorption atmosphérique

ISO 9613-2: Acoustics: attenuation of sound during propagation outdoors

part 2: engineering method for the prediction of sound pressure levels outdoors

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