On measuring the scattering coefficient in a nondiffuse sound field


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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.

Sobre autores

N. Kanev

Andreev Acoustics Institute; Bauman Moscow State Technical University

Autor responsável pela correspondência
Email: nikolay.kanev@mail.ru
Rússia, ul. Shvernika 4, Moscow, 117036; ul. Vtoraya Baumanskaya, str. 1, Moscow, 105005

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