Surface diffusion coefficients for room acoustics : free-field measures

Hargreaves, TJ, Cox, TJ ORCID: https://orcid.org/0000-0002-4075-7564, Lam, YW and D'Antonio, P 2000, 'Surface diffusion coefficients for room acoustics : free-field measures' , The Journal of the Acoustical Society of America (JASA), 108 (4) , pp. 1710-1720.

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Abstract

A surface diffusion coefficient is needed in room acoustics to enable the quality of diffusing surfaces to be evaluated. It may also facilitate more accurate geometric room acoustic models. This paper concentrates on diffusion coefficients derived from free-field polar responses. An extensive set of two- and three-dimensional measurements and predictions was used to test the worth of different diffusion coefficient definitions. The merits and problems associated with these types of coefficients are discussed, and past parameters reviewed. Two new coefficients are described. The new measure based on the autocorrelation function is forwarded as the best free-field coefficient. The strengths and weaknesses of the coefficient are defined. © 2000 Acoustical Society of America.

Item Type:	Article
Themes:	Subjects / Themes > Q Science > QC Physics > QC221-246 Acoustics - Sound Subjects outside of the University Themes
Schools:	Schools > School of Computing, Science and Engineering Schools > School of Computing, Science and Engineering > Salford Innovation Research Centre
Journal or Publication Title:	The Journal of the Acoustical Society of America (JASA)
Publisher:	Acoustical Society of America
Refereed:	Yes
Related URLs:	http://asadl.org/jasa/resource/1/jasman/...
Funders:	Engineering and Physical Sciences Research Council (EPSRC)
Depositing User:	TJ Cox
Date Deposited:	19 Apr 2011 08:31
Last Modified:	16 Feb 2022 11:19
URI:	https://usir.salford.ac.uk/id/eprint/14651

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