Comment on "a theoretical framework for quantitatively characterizing sound field diffusion based on scattering coefficient and absorption coefficient of walls" [J. Acoust. Soc. Am. 128, 1140-1148 (2010)] (L)

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    Abstract

    The relationship between the acoustic scattering characteristics of materials and the degree of diffusion in enclosed acoustic spaces has recently attracted considerable research attention. Hanyu [J. Acoust. Soc. Am. 128(3), 1140-1148 (2010)] introduced a theoretical framework, in which the diffusion time in an enclosure is expressed as a function of a material's average scattering coefficient. In this letter, a modification of this theory is proposed. The decay process of the sound energy through scattering is divided into discrete sub-processes, specifically, a purely scattering process, and alternating scattering and specular reflections. The behavior of each process is examined for different scattering coefficients.

    Original languageEnglish
    Pages (from-to)9-12
    Number of pages4
    JournalJournal of the Acoustical Society of America
    Volume133
    Issue number1
    DOIs
    Publication statusPublished - Jan 2013

    All Science Journal Classification (ASJC) codes

    • Arts and Humanities (miscellaneous)
    • Acoustics and Ultrasonics

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