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Predictors of speech intelligibility in rooms

From National Research Council Canada

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Affiliation
  1. National Research Council of Canada. NRC Institute for Research in Construction
FormatText, Article
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
Abstract
Three 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
In
  • Journal of the Acoustical Society of America 80, no. 3 (September 1986): 837–845.
LanguageEnglish
Peer reviewedYes
IdentifierIRC-P-1414
NRC numberNRCC 26493
NRC-IRC-2123
NPARC number20373795
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Record identifierf868a778-6168-4897-b5b5-170eedf288d0
Record created2012-07-23
Record modified2020-06-06
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