Influence of diffusivity on the transmission loss of a single-leaf wall

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AuthorSearch for:
TypeArticle
Journal titleJournal of the Acoustical Society of America
Volume47
Issue3(Part 1)
Pages667675; # of pages: 9
SubjectWalls
AbstractCremer's theory of sound transmission for a single leaf wall is transformed into a more general formulation in which the exciting pressure is expressed in terms of the spatial cross correlation. The correlation coefficient was measured in a reverberation room just in front of the wall under test. The sound trasmission loss of a single gypsum board wall was calculated employing these diffusivity measurements and compared with experimental data. Agreement between theory and experiment is good, especially in the frequency range below the coincidence frequency. Finally, a few fictitious quasidifluse sound fields are investigated in further study of the influence of the degree of diffusivity upon transmission loss.
Publication date
LanguageEnglish
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedNo
IdentifierDBR-RP-444
NRC number11462
6987
NPARC number20338544
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Record identifiercce5e6f9-05a1-464e-9b71-b9c2be02a93c
Record created2012-07-19
Record modified2016-05-09
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