Prediction of the sound diffracted around barriers in large rooms using an extension of Maekawa's approach

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dc.contributorVirginia Tech. Department of Mechanical Engineeringen
dc.contributorCovington Research Center. Westvacoen
dc.contributor.authorJohnson, R. A.en
dc.contributor.authorHurst, Charles J.en
dc.contributor.authorMitchell, Larry D.en
dc.contributor.departmentMechanical Engineeringen
dc.date.accessed2015-05-12en
dc.date.accessioned2015-05-27T19:50:19Zen
dc.date.available2015-05-27T19:50:19Zen
dc.date.issued1977en
dc.description.abstractA computer program has been developed for the prediction of sound pressure levels in large, irregular rooms utilizing a geometric acoustics approach. Experiments indicated that the program gave good predictive accuracy when receiver positions were in the line of sight of the sound source. However, the accuracy was poor when the receiver was out of the line of sight. The present discussion reports on the further development of the program to include diffraction effects using an extension of Maekawa's approach for thin screens and right angle wedges. The program is capable of finding all valid diffracted rays which undergo three or fewer reflections before diffraction and three or fewer reflections after diffraction. Limited experimental work indicates good predictive accuracy.en
dc.description.notesAbstract from the Program of the 93rd Meeting of the Acoustical Society of America. Session L. (Poster Session) Architectural Acoustics II. Poster Papers.en
dc.format.extent1 pageen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationJohnson, R. A., Hurst, C. J., & Mitchell, L. D. (1977). Prediction of the sound diffracted around barriers in large rooms using an extension of Maekawa's approach. Journal of the Acoustical Society of America, 61, S23-S23. doi: 10.1121/1.2015492en
dc.identifier.doihttps://doi.org/10.1121/1.2015492en
dc.identifier.issn0001-4966en
dc.identifier.urihttp://hdl.handle.net/10919/52656en
dc.identifier.urlhttp://scitation.aip.org/content/asa/journal/jasa/61/S1/10.1121/1.2015492en
dc.language.isoen_USen
dc.publisherAcoustical Society of Americaen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectAcoustic wave diffractionen
dc.subjectAcoustical effectsen
dc.subjectAcousticsen
dc.subjectComputer softwareen
dc.subjectSound pressureen
dc.titlePrediction of the sound diffracted around barriers in large rooms using an extension of Maekawa's approachen
dc.title.serialJournal of the Acoustical Society of Americaen
dc.typeAbstracten
dc.type.dcmitypeTexten

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