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Diffusive benefits of cylinders in front of a Schroeder diffuser

Pogson, MA; Whittaker, DM; Gehring, GA; Cox, TJ; Hughes, RJ; Angus, JAS

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Authors

MA Pogson

DM Whittaker

GA Gehring

RJ Hughes

JAS Angus



Abstract

A numerical investigation is performed into the diffusive effects of cylinders positioned in front of a Schroeder diffuser. A regular line of cylinders is shown to offer notable improvements to diffusion from a periodic Schroeder device, provided lateral cylinder spacing is incommensurable with the Schroeder period width. Further investigation considers angular dependence and low frequency results in greater detail, as well as the effects on narrowband and modulated Schroeder devices. An optimization procedure is subsequently performed to investigate the effects of an irregular cylinder arrangement, which provides further diffusive benefits. (C) 2010 Acoustical Society of America.

Citation

Pogson, M., Whittaker, D., Gehring, G., Cox, T., Hughes, R., & Angus, J. (2010). Diffusive benefits of cylinders in front of a Schroeder diffuser. ˜The œJournal of the Acoustical Society of America (Online), 128(3), 1149-1154. https://doi.org/10.1121/1.3463817

Journal Article Type Article
Publication Date Sep 1, 2010
Deposit Date Oct 20, 2011
Publicly Available Date Apr 5, 2016
Journal The Journal of the Acoustical Society of America (JASA)
Print ISSN 0001-4966
Peer Reviewed Peer Reviewed
Volume 128
Issue 3
Pages 1149-1154
DOI https://doi.org/10.1121/1.3463817
Publisher URL http://dx.doi.org/10.1121/1.3463817
Additional Information Funders : Engineering and Physical Sciences Research Council (EPSRC)

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