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Master Thesis

Étude acoustique de la production de consonnes et de voyelles du français par des enfants porteurs d'un implant cochléaire

Abstract : Since the cochlear implant's invention in 1978, several studies, which describe speech production by children wearing cochlear implant (CI children), seem to suggest that CI children have difficulties correctly producing fricatives, stops, laterals and formant 2 (F2) in vowels. But we can say that there are some problems in these studies. First, lots of studies calculate average over children of different ages and/or different implantation ages and they do not always include a comparison with normal-hearing children. Secondly only a few studies are based on objective acoustic measurements, often only perceptual analysis which implies subjective judgments. There are also no consistent acoustic measurements (formant space, formant distances, spectral slopes, etc.). And at least, there are no known studies on French although French is interesting because has many vowels, including nasal vowels. The aim of this paper is to present an acoustic analysis of speech production by French deaf children wearing cochlear implants (CI). With this intention, we recorded 5 CI children and 8 children with normal hearing in a word repetition task to measure all oral French vowels, voiced and unvoiced stops and sibilant fricatives. The results indicate that CI children have difficulties producing the four spectral moments in fricative consonant production, VOTs with lowest values for stops and for vowels they also have lowest values for men F2 and range F2.
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https://dumas.ccsd.cnrs.fr/dumas-00708291
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Submitted on : Thursday, June 14, 2012 - 3:15:49 PM
Last modification on : Tuesday, May 11, 2021 - 11:36:16 AM
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  • HAL Id : dumas-00708291, version 1

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Lucie Scarbel. Étude acoustique de la production de consonnes et de voyelles du français par des enfants porteurs d'un implant cochléaire. Sciences de l'Homme et Société. 2012. ⟨dumas-00708291⟩

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