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Syllable structure the coordination of speech gestures| old_uid | 15933 |
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| title | Syllable structure the coordination of speech gestures |
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| start_date | 2018/06/05 |
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| schedule | 17h-19h |
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| online | no |
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| location_info | salle Rousselot |
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| details | thème : Recent Developments in Articulatory Phonology |
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| summary | Careful reflection suggests that the relative timing among the gestures of an utterance is intrinsically dependent on the utterance’s prosodic organization (including both syllable structure and length contrasts as well as higher levels of prosody), but is to a first approximation independent of the specific consonant and vowel gestures that are deployed and their dynamics. Recent experimental evidence for this dissociation will be presented, along with parallel evidence from birdsong. Within AP, a model of intergestural timing has been developed over the last 15 years [5] in which the relative time at which gestures are triggered is predicted by a network of coupled planning clocks (oscillators) each of which is responsible for an individual gesture. The graph represents syllable structure by means of modes of coupling: onset consonants are coupled in-phase to the nucleus gesture, while coda consonants are coupled anti-phase to the nucleus gesture. Coupling between gestures of adjacent syllables is also represented. Two issues that have not been previously probed will be discussed: (1) Predicting language variation in relative timing (and overlap) of heterosyllabic consonant sequences, as well variability in timing, as a function of the topology of the language-specific coupling graph (the graph not only predicts timing, but also variability). (2) Integrating sonority with the coupled oscillator model. The coupled oscillator model is blind to the properties of the individual consonant and vowel gestures (such as sonority), but sonority lies at the heart of most models of syllable structure, and evidence (to be reviewed) shows that sonority does modulate the patterns of relative gesture timing. |
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| responsibles | Isel |
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