Print Email Facebook Twitter Quantifying the intelligibility of speech in noise for non-native listeners Title Quantifying the intelligibility of speech in noise for non-native listeners Author van Wijngaarden, S.J. Steeneken, H.J.M. Houtgast, T. TNO Technische Menskunde Publication year 2002 Abstract When listening to languages learned at a later age, speech intelligibility is generally lower than when listening to one's native language. The main purpose of this study is to quantify speech intelligibility in noise for specific populations of non-native listeners, only broadly addressing the underlying perceptual and linguistic processing. An easy method is sought to extend these quantitative findings to other listener populations. Dutch subjects listening to Germans and English speech, ranging from reasonable to excellent proficiency in these languages, were found to require a 1-7 dB better speech-to-noise ratio to obtain 50% sentence intelligibility than native listeners. Also, the psychometric function for sentence recognition in noise was found to be shallower for non-native than for native listeners (worst-case slope around the 50% point of 7.5%/dB, compared to 12.6%/dB for native listeners). Differences between native and non-native speech intelligibility are largely predicted by linguistic entropy estimates as derived from a letter guessing task. Less effective use of context effects (especially semantic redundancy) explains the reduced speech intelligibility for non-native listeners. While measuring speech intelligibility for many different populations of listeners (languages, linguistic experience) may be prohibitively time consuming, obtaining predictions of non-native intelligibility from linguistic entropy may help to extend the results of this study to other listener populations. © 2002 Acoustical Society of America. Subject Acoustics and AudiologyAcoustic noiseAuditionFormal languagesLinguisticsLinguistic entropySpeechacousticsadultarticlecontrolled studyentropylanguagelanguage abilitynoiseperceptionpopulationpredictionpriority journalpsychometryspeech discriminationspeech intelligibilityAdolescentMultilingualismPerceptual MaskingPhoneticsPsycholinguisticsSensory ThresholdsSpeech AcousticsSpeech IntelligibilitySpeech PerceptionSpeech Reception Threshold Test To reference this document use: http://resolver.tudelft.nl/uuid:168c2993-6d43-4b8a-9b93-ab2697a43a8a DOI https://doi.org/10.1121/1.1456928 TNO identifier 10377 Source Journal of the Acoustical Society of America, 111 (4), 1906-1916 Document type article Files To receive the publication files, please send an e-mail request to TNO Library.