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An acoustic investigation of the Swedish child’s acquisition of obstruent place of articulation
Umeå University, Faculty of Medicine, Department of Clinical Sciences, Speech and Language Therapy.
Umeå University, Faculty of Arts, Department of language studies.
Umeå University, Faculty of Arts, Department of language studies.
2008 (English)In: Acoustics'08 Paris : June 29 - July 4, 2008, Paris: Société Française d'Acoustique (SFA) , 2008, 681-686 p.Conference paper (Other academic)
Abstract [en]

Speech produced by children in the initial stages of development does generally not uphold as many phonetic distinctions as speech sounds produced by adults. A child's productions of different target words may therefore have similar acoustic properties and result in homonyms being perceived by the adult observer. This study presents a longitudional investigation into the development of place of articulation from non‐distinctive to distinctive productions in word‐initial obstruents produced by 22 Swedish children (aged 18 ‐ 48 months). The data was collected through monthly recordings, approximatelly one year per child. The acoustic correlates analysed were spectral diffuseness, spectral skewness and spectral tilt for plosives and spectral skewness, spectral kurtosis, spectral variance and F2 onset frequency for fricatives. The results show a developmental trend in spectral skewness that is indicative of a increasing number of acquired phonetic contrasts. Spectral tilt change, F2 onset frequency, spectral mean and spectral variance provide evicence of within‐category refinement wich is argued to be caused primarilly by advancements in motor control.

Place, publisher, year, edition, pages
Paris: Société Française d'Acoustique (SFA) , 2008. 681-686 p.
URN: urn:nbn:se:umu:diva-46198ISBN: 978-2-952-11054-9OAI: diva2:437365
Acoustics'08 Paris, 29/6-4/7, 2008
Abstract publicerat i Journal of the Acoustical Society of America, Volym 123, nummer 5, sid. 3077 (2008).Available from: 2011-08-29 Created: 2011-08-29 Last updated: 2011-08-30Bibliographically approved

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Artikel i Acoustics'08 ParisAbstract i Journal of the Acoustical Society of America

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van Doorn, JanKarlsson, FredrikSullivan, Kirk P. H.
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Speech and Language TherapyDepartment of language studies

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