Absorption corrections for transmission loss measurements

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Journal titleJournal of the Acoustical Society of America
Pages206211; # of pages: 6
Subjectsound transmission loss; sound absorption; sound resistant partitions; room acoustics; sound transmission loss measurement; various methods; room absorption effects; conventional decay method; known power sound source method; near-rad method; Sound transmission & insulation; perte de transmission sonore; absorption acoustique; cloison insorisée; acoustique des salles
AbstractMeasurements of sound transmission loss made using nine different methods to estimate the effects of room absorption are reported. A single wall specimen was used in five different positions in the opening of a laboratory sound transmission loss test suite. Four different levels of room absorption were used. The conventional decay method is shown to work well in all cases, as does a method using a sound source with a known power to estimate the room absorption. A method using a sound-pressure level near the source and the room average, the near-far method, did not work as well.
Publication date
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedYes
NRC number26201
NPARC number20358847
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Record identifierae4fa3de-23d3-4021-bf77-ddbcafd71d3b
Record created2012-07-20
Record modified2016-05-09
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