Absorption of sound by a strip of absorptive material in a diffuse sound field

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TypeArticle
Journal titleJournal of the Acoustical Society of America
ISSN0001-4966
Volume31
Issue5
Pages595599; # of pages: 5
SubjectAcoustics
AbstractThe random incidence sound absorption coefficient is calculated for a narrow strip of absorbing material set in an otherwise reflecting plane. The assumptions made are that the material is of the locally reacting type, with a real normal admittance. The effect of an imaginary component of admittance is discussed qualitatively. The results show the increase in absorption coefficient that occurs at small widths due to diffraction. Consideration is also given to the absorption of rectangular patches having both dimensions in the diffraction range. The standard reverberation room measurement of sound absorption is examined.
Publication date
LanguageEnglish
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedNo
IdentifierDBR-RP-83
NRC number5163
2879
NPARC number20374079
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Record identifier06f50f5e-20c4-412a-9fa3-05064cc0622a
Record created2012-07-23
Record modified2016-05-09
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