Smiling during speech requires concurrent and often conflicting demands on the articulators. Thus, speaking while smiling may be modeled as a type of coarticulation. This study explores whether a context-invariant or a context-sensitive model of coarticulation better accounts for the variation seen in smiled versus neutral speech. While context-sensitive models assume some mechanism for planning of coarticulatory interactions [see Munhall et al., 2000, Lab Phon. V, 9–28], the simplest context-invariant models treat coarticulation as superposition [e.g., Joos, 1948, Language 24, 5–136]. In such a model, the intrinsic biomechanics of the body have been argued to account for many of the complex kinematic interactions associated with coarticulation [Gick et al., 2013, POMA 19, 060207]. Largely following the methods described in Fagel [2010, Dev. Multimod. Interf. 5967, 294–303], we examine articulatory variation in smiled versus neutral speech to test whether the local interactions of smiling and speech can be resolved in a context-invariant superposition model. Production results will be modeled using the ArtiSynth simulation platform (www.artisynth.org). Implications for theories of coarticulation will be discussed. [Research funded by NSERC.]
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April 2015
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April 01 2015
Smiled speech in a context-invariant model of coarticulation
Samuel Akinbo;
Samuel Akinbo
Univ. of Br. Columbia, 2613 West Mall, Vancouver, British Columbia V6T 1Z4, Canada, [email protected]
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Thomas J. Heins;
Thomas J. Heins
Univ. of Br. Columbia, 2613 West Mall, Vancouver, British Columbia V6T 1Z4, Canada, [email protected]
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Megan Keough;
Megan Keough
Univ. of Br. Columbia, 2613 West Mall, Vancouver, British Columbia V6T 1Z4, Canada, [email protected]
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Elise K. McClay;
Elise K. McClay
Univ. of Br. Columbia, 2613 West Mall, Vancouver, British Columbia V6T 1Z4, Canada, [email protected]
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Avery Ozburn;
Avery Ozburn
Univ. of Br. Columbia, 2613 West Mall, Vancouver, British Columbia V6T 1Z4, Canada, [email protected]
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Michael D. Schwan;
Michael D. Schwan
Univ. of Br. Columbia, 2613 West Mall, Vancouver, British Columbia V6T 1Z4, Canada, [email protected]
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Murray Schellenberg;
Murray Schellenberg
Univ. of Br. Columbia, 2613 West Mall, Vancouver, British Columbia V6T 1Z4, Canada, [email protected]
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Jonathan de Vries;
Jonathan de Vries
Univ. of Br. Columbia, 2613 West Mall, Vancouver, British Columbia V6T 1Z4, Canada, [email protected]
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Bryan Gick
Bryan Gick
Univ. of Br. Columbia, 2613 West Mall, Vancouver, British Columbia V6T 1Z4, Canada, [email protected]
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Samuel Akinbo
Thomas J. Heins
Megan Keough
Elise K. McClay
Avery Ozburn
Michael D. Schwan
Murray Schellenberg
Jonathan de Vries
Bryan Gick
Univ. of Br. Columbia, 2613 West Mall, Vancouver, British Columbia V6T 1Z4, Canada, [email protected]
J. Acoust. Soc. Am. 137, 2304 (2015)
Citation
Samuel Akinbo, Thomas J. Heins, Megan Keough, Elise K. McClay, Avery Ozburn, Michael D. Schwan, Murray Schellenberg, Jonathan de Vries, Bryan Gick; Smiled speech in a context-invariant model of coarticulation. J. Acoust. Soc. Am. 1 April 2015; 137 (4_Supplement): 2304. https://doi.org/10.1121/1.4920416
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