Evaluation of Airborne Sound Insulation in Terms of Speech Intelligibility

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DOIResolve DOI: http://doi.org/10.4224/20377977
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TypeTechnical Report
Series titleResearch Report (National Research Council Canada. Institute for Research in Construction); no. RR-228
Physical description38 p.
SubjectSound transmission & insulation
AbstractThis report gives the results of new listening tests to evaluate various airborne sound insulation ratings in terms of the intelligibility of transmitted speech. These subjective evaluations of sound insulation ratings are a first experiment of several intended to validate existing sound insulation ratings and investigate possible improvements. In these experiments listeners heard test sentences played through 20 different simulated walls in the presence of a constant low level ambient noise. The mean intelligibility scores from 15 subjects, each listening to 5 different sentences for each wall, were used to test the suitability and accuracy of various sound insulation rating measures for speech sounds.
Publication date
PublisherNational Research Council Canada
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedNo
NRC numberNRC-IRC-18383
NPARC number20377977
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Record identifier1bddec5e-b73b-41b0-bd7a-ae4c1c00c5e5
Record created2012-07-24
Record modified2017-06-15
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