Print Email Facebook Twitter Binaural intelligibility prediction based on the speech transmission index Title Binaural intelligibility prediction based on the speech transmission index Author van Wijngaarden, S.J. Drullman, R. TNO Defensie en Veiligheid Publication year 2008 Abstract Although the speech transmission index STI is a well-accepted and standardized method for objective prediction of speech intelligibility in a wide range of environments and applications, it is essentially a monaural model. Advantages of binaural hearing in speech intelligibility are disregarded. In specific conditions, this leads to considerable mismatches between subjective intelligibility and the STI. A binaural version of the STI was developed based on interaural cross correlograms, which shows a considerably improved correspondence with subjective intelligibility in dichotic listening conditions. The new binaural STI is designed to be a relatively simple model, which adds only few parameters to the original standardized STI and changes none of the existing model parameters. For monaural conditions, the outcome is identical to the standardized STI. The new model was validated on a set of 39 dichotic listening conditions, featuring anechoic, classroom, listening room, and strongly echoic environments. For these 39 conditions, speech intelligibility consonant-vowel-consonant CVC word score and binaural STI were measured. On the basis of these conditions, the relation between binaural STI and CVC word scores closely matches the STI reference curve standardized relation between STI and CVC word score for monaural listening. A better-ear STI appears to perform quite well in relation to the binaural STI model; the monaural STI performs poorly in these cases. Subject Acoustics and AudiologyForecastingSchool buildingsSemiconducting siliconSpeech analysisSpeech communicationSpeech intelligibilitySpeech transmission(I ,J) conditionsBinaural hearingCorrelogramsDichotic listeningModel parametersSimple modelingSpeech transmission indexSTIWide-rangeSpeechConsonantDichotic listeningFunctional LateralityModels, BiologicalPredictive Value of TestsSpeech Discrimination TestsSpeech Perception To reference this document use: http://resolver.tudelft.nl/uuid:6578be0d-f5f3-474b-8e85-5ee58f059a7d DOI https://doi.org/10.1121/1.2905245 TNO identifier 22156 Source Journal of the Acoustical Society of America, 123 (6), 4514-4523 Document type article Files To receive the publication files, please send an e-mail request to TNO Library.