Detection of Localized Sound Leaks or "Hot Spots" and their Effects on Architectural Speech Privacy (Speech Security)

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TypeTechnical Report
Series titleResearch Report, NRC Institute for Research in Construction; Volume 224
Physical description65 p.
Subjectarchitectural speech privacy, speech security, sound leaks; Speech security
AbstractThis report summarizes measurements made on a test wall that was modified to include a variety of defects. The severity and detectability of the known defects was investigated. Not all defects were severe enough to cause a leak that was any worse than the natural variation of sound insulation across the wall. Other defects were marginally severe enough to affect the speech privacy rating. These types of defects were, in general, not detectable with conventional measurements of transmission loss, but were detectable with the new speech privacy measurement procedure. More serious and obvious defects were also readily detectable with the new procedure.
Publication date
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedNo
NRC number18149
NPARC number20377775
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Record identifier99e27d8c-826f-422a-aa42-53b8e6ed6bce
Record created2012-07-24
Record modified2016-10-03
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