Predictors of speech intelligibility in rooms

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Journal titleJournal of the Acoustical Society of America
Pages83745; # of pages: 793
Subjectspeech intelligibility; room acoustics; acoustical measures; signal-to-noise measures; speech transmission index; modulation transfer functions; useful/detrimental sound ratios; early/late sound ratios; speech; background levels; prediction accuracy; Speech security; intelligibilité; acoustique des salles
AbstractThree different types of acoustical measures were compared as predictors of speech intelligibility in rooms of varied size and acoustical conditions. These included signal-to - noise measures, the speech transmission index derived from modulation transfer functions, and useful/detrimental sound ratios obtained from early/late sound ratios, speech, and background levels. The most successful forms of each type of measure were of similar prediction accuracy, but the useful/detrimental ratios based on a 0.08-s early time interval were most accurate, Several physical measures, although based on very different calculation procedures, were quite strongly related to each other.
Publication date
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedYes
NRC number26493
NPARC number20373795
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Record identifierf868a778-6168-4897-b5b5-170eedf288d0
Record created2012-07-23
Record modified2016-05-09
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