Synergy between jaw and lips/tongue movements : consequences in articulatory modelling
نویسندگان
چکیده
CONSEQUENCES IN ARTICULATORY MODELLING Gérard Bailly, Pierre Badin & Anne Vilain Institut de la Communication Parlée INPG & Université Stendhal 46, avenue Félix Viallet, 38031 Grenoble Cedex 1, France Abstract Linear component articulatory models [9, 10, 5] are built using an iterative substraction of linear predictors of the vocal tract geometry. In this paper we consider the contribution of jaw displacement to tongue and lips movements using sets of cineradiographic data from three di erent speakers. We show that linear prediction overestimates this contribution by capturing not only the intrinsic mechanical jaw-tongue coupling but also the synergetic control observed in the corpus. We then propose a substraction of the jaw contribution which do not a ect the performance of the model in terms of data prediction.
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