2020
Vowel Acoustics and Speech Intelligibility in Young Adults With Down Syndrome.
Carl M, Kent R, Levy E, Whalen D. Vowel Acoustics and Speech Intelligibility in Young Adults With Down Syndrome. Journal Of Speech Language And Hearing Research 2020, 63: 674-687. PMID: 32160481, DOI: 10.1044/2019_jslhr-19-00204.Peer-Reviewed Original ResearchConceptsCorner vowelsVowel productionSingle-word productionSpeech production deficitsAcoustic measurementsIntelligence scoresYoung adultsSpeech intelligibilityDown syndromeLow vowelsVowel centralizationEnglish wordsFormant dataVowel acousticsProduction deficitsVowelsAdult listenersSpeech impairmentSpeech intelligibility scoresAcoustic findingsSpeakersReduced intelligibilitySpeechTD controlsMethod Participants
1990
Asymmetries in vowel-fricative and fricative-vowel information
Whalen D. Asymmetries in vowel-fricative and fricative-vowel information. The Journal Of The Acoustical Society Of America 1990, 87: s117-s118. DOI: 10.1121/1.2027867.Peer-Reviewed Original Research
1987
Qualitative separateness in children's speech
Nittrouer S, Whalen D. Qualitative separateness in children's speech. The Journal Of The Acoustical Society Of America 1987, 82: s84-s84. DOI: 10.1121/1.2025025.Peer-Reviewed Original ResearchChildren's speechVowel contextsFricative noiseAdult speechChild speakersPhonetic unitsFricative identificationAcoustic differencesF2 frequenciesAdult listenersAcoustic analysisListenersSpeechGross spectrumPerceptual segmentationAcoustic informationSyllablesYoung childrenAdultsChildrenAllophonesVowelsSpeakersContextHypothesis