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2004

Dynamical simulation of speech cooperative articulation by muscle linkages

9 years 7 months ago
Dynamical simulation of speech cooperative articulation by muscle linkages
Different kinds of articulators, such as the upper and lower lips, jaw, and tongue, are precisely coordinated in speech production. Based on a perturbation study of the production of a fricative consonant using the upper and lower lips, it has been suggested that increasing the stiffness in the muscle linkage between the upper lip and jaw is beneficial for maintaining the constriction area between the lips (Gomi et al. 2002). This hypothesis is crucial for examining the mechanism of speech motor control, that is, whether mechanical impedance is controlled for the speech motor coordination. To test this hypothesis, in the current study we performed a dynamical simulation of lip compensatory movements based on a muscle linkage model and then evaluated the performance of compensatory movements. The temporal pattern of stiffness of muscle linkage was obtained from the electromyogram (EMG) of the orbicularis oris superior (OOS) muscle by using thetemporaltransformation(second-orderdynamicsw...
Takayuki Ito, Hiroaki Gomi, Masaaki Honda
Added 16 Dec 2010
Updated 16 Dec 2010
Type Journal
Year 2004
Where BC
Authors Takayuki Ito, Hiroaki Gomi, Masaaki Honda
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