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Journal Articles Journal of Phonetics Year : 2021

Domain-initial effects on C-to-V and V-to-V coarticulation in French: A corpus-based study

Abstract

This corpus-based study investigates whether and how coarticulation is modulated domain-initially in French. Post-boundary IP-initial sequences were compared to the same sequence in word-medial position according to the composition and structural link between the elements of that sequence. We examined 4 cases of coarticulation: C-to-V coarticulation within syllable in #CV and #VC. sequences, across syllables in #V.C sequences, and anticipatory V2-to-V1 coarticulation in #V1.C(C)V2 sequences. Coarticulation was determined by the amount of spectral change in the formant of the vowel /a/ according to its context: an alveolar vs. uvular C context for Cto- V coarticulation, and a high vs. low V context for V-to-V coarticulation. The analysis of 15,000 tokens of /a/ revealed that coarticulation can be modulated by prosody but this effect appeared to depend on the structural relationships (the relation of the sounds relative to each other and to the syllable structure) between the elements in the IP-initial sequence. A reduction of coarticulation of IP-initial sequence was only found for the two cases of anticipatory C-to-V coarticulation (VC and V.C sequences). Interestingly, this reduction of coarticulation was larger in the heterosyllabic V.C sequence. These results are discussed in terms of difference of the coupling between the elements in the sequence and the proximity of the vowel to the boundary. They suggest that coupling relations constrain prosodically-induced variation.
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Dates and versions

hal-03497631 , version 1 (27-12-2021)

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Fanny Guitard-Ivent, Giuseppina Turco, Cécile Fougeron. Domain-initial effects on C-to-V and V-to-V coarticulation in French: A corpus-based study. Journal of Phonetics, 2021, 87, pp.101057. ⟨10.1016/j.wocn.2021.101057⟩. ⟨hal-03497631⟩
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