Articulation of English vowels in running speech: a real-time MRI study

Michael Proctor, Chi Yhun Lo, Shrikanth Narayanan

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    16,105 vowels produced by three speakers of American English were examined using real-time MRI, to provide further insights into tongue shaping and articulatory contrast in stressed and unstressed positions in fluent speech. High front vowels were found to maintain characteristic lingual postures in prosodically weak environments. Non-high vowels were articulated with a more raised dorsum and different pharyngeal constrictions in unstressed positions, compared to their stressed counterparts. The data reveal complex patterns of reduction, influenced by individual speaker vocal tract morphology, that resist simple characterization as ‘centralization’.
    Original languageEnglish
    Title of host publicationProceedings of the 18th International Congress of Phonetic Sciences
    Editors The Scottish Consortium for ICPhS 2015
    Place of PublicationLondon
    PublisherInternational Phonetic Association
    Number of pages5
    ISBN (Print)9780852619414
    Publication statusPublished - 2015
    EventInternational congress of phonetic sciences (18th : 2015) - Glasgow, UK
    Duration: 10 Aug 201514 Aug 2015


    ConferenceInternational congress of phonetic sciences (18th : 2015)
    CityGlasgow, UK

    Bibliographical note

    Copyright the Author(s) 2015. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.


    • Vowel production
    • English prosody
    • Stress
    • Tongue
    • Real-time MRI


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