5th International Conference on Spoken Language Processing
Linear component articulatory models are built using an iterative subtraction 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 different 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 subtraction of the jaw contribution which do not affect the performance of the model in terms of data prediction.
Bibliographic reference. Bailly, Gérard / Badin, Pierre / Vilain, Anne (1998): "Synergy between jaw and lips/tongue movements : consequences in articulatory modelling", In ICSLP-1998, paper 0066.