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De l'impact des variations temporelles sur les transitions formantiques

Abstract : The aim of this study is to examine the different spectral variations that are impacted by two types of temporal modifications : phonological vowel length contrast (intrinsic variations) and varying speaking rates (extrinsic variations). Three experiments, two on Jordanian Arabic and one on French, were conducted to investigate this phenomenon. We were interested in stop consonants produced in the initial and the final positions in CVC sequences. Vowel duration and the frequency of the first three formants were measured for each vowel length and speaking rate. In addition, locus equations were computed to measure the impact of time variations on CV / VC coarticulation. According to the results, the vowel and consonant qualities are influenced both by vowel duration contrasts and by speaking rate modifications in different ways. Such modifications are evidenced by locus equations and by dispersion analyses as well. These two quantification tools revealed that there is greater coarticulatory overlap when the duration of the vowel is reduced, regardless of the origin of temporal variations in the two languages (intrinsic and extrinsic). On the other hand, temporal variations affect the classification of the stop conso nant differently according to their origin.
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Submitted on : Saturday, September 8, 2018 - 4:27:29 PM
Last modification on : Thursday, September 13, 2018 - 1:15:27 AM
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Mohammad Abuoudeh. De l'impact des variations temporelles sur les transitions formantiques. Linguistique. Université de Nantes, 2018. Français. ⟨tel-01870663⟩

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