6/24/2023 0 Comments Sonority accent![]() 5, ‘Effects of prosody on lip movement kinematics’ (113–57), C addresses lip opening and closing gestures. C introduces a process called postlexical optimization, which chooses the active region of an articulatory window, shrinking in the direction of hyperarticulation. Coarticulatory resistance occurs in both accented and prosodic boundary positions, while coarticulatory aggression is absent for accented vowels across prosodic boundaries. 4, ‘Prosodically conditioned V-to-V coarticulatory resistance’ (69–112), investigates prosodic effects of vowel-to-vowel coarticulation. However, prosodic domain-initial and prosodic domain-final positions show different effects.Ĭh. ![]() 3, ‘Effects of accent and prosodic boundary on articulatory maxima: Tongue, jaw and lip’ (47–67), shows that accent- and boundary-induced strengthening both enhance sonority features. All statistics are undertaken across speakers, meaning that nonsignificance in the study can either be due to interspeaker variation or to an overall lack of pattern.Ĭh. 2 (27–46) lays out the methods for the development of the Electromagnetic Midsagittal Articulography database, and the statistical analysis undertaken. ![]() C conveniently introduces the predictions of each parameter change, as well as two hypotheses for the higher level linguistic goals of articulatory strengthening: sonority expansion and hyperarticulation. C provides a useful description of the four dynamical parameters available in the massspring model assumed by task dynamics: change in stiffness, change in target, change in intergestural timing, and change by shrinking. This follows up on work showing effects of accent, intonational phrase-final position, and intonational phrase-initial position on articulation. In the introductory chapter (3–25), C introduces the main hypothesis, that articulatory strengthening increases the spatio-temporal magnitude of articulatory gestures in different prosodic contexts. This is the first corpus of its kind, and it represents a great contribution to the field. C created a corpus of three articulator movements labeled for three prosodic positions within a ToBI-based framework for the study. What parameters in a mass-spring model can handle the effects of accent and position in prosodic domain on articulation? This question is tackled in Taehong Cho’s dissertation.
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