Abstract
The laws of sound decay in a cubic room, one wall of which is absorbing and the other scattering, are obtained. It is shown that under certain conditions, sound decay in a room occurs nonexponentially and the shape of the decay curve depends on the scattering coefficient of the walls. This makes it possible to suggest a method for measuring the scattering coefficient by the analysis the decay curve when the walls have sound-scattering materials and structures. Expressions are obtained for approximating the measured decay curve, and the boundaries of the method’s applicability are determined.
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Original Russian Text © N.G. Kanev, 2017, published in Akusticheskii Zhurnal, 2017, Vol. 63, No. 6, pp. 679–684.
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Kanev, N.G. On measuring the scattering coefficient in a nondiffuse sound field. Acoust. Phys. 63, 731–736 (2017). https://doi.org/10.1134/S1063771017050062
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DOI: https://doi.org/10.1134/S1063771017050062