Degrees of freedom of tongue movements in speech may be constrained by biomechanics

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dc.creatorPerrier, Pascal
dc.creatorPerkell, Joseph
dc.creatorPayan, Yohan
dc.creatorZandipour, Majid
dc.creatorGuenther, Franck
dc.creatorKhalighi, Ali
dc.date2007-09-10
dc.date.accessioned2026-07-07T08:28:32Z
dc.date.available2026-07-07T08:28:32Z
dc.descriptionA number of studies carried out on different languages have found that tongue movements in speech are made along two primary degrees of freedom (d.f.s): the high-front to low-back axis and the high-back to low-front axis. We explore the hypothesis that these two main d.f.s could find their origins in the physical properties of the vocal tract. A large set of tongue shapes was generated with a biomechanical tongue model using a Monte-Carlo method to thoroughly sample the muscle control space. The resulting shapes were analyzed with PCA. The first two factors explain 84% of the variance, and they are similar to the two experimentally observed d.f.s. This finding suggests that the d.f.s. are not speech-specific, and that speech takes advantage of biomechanically based tongue properties to form different sounds.
dc.identifierhttps://arxiv.org/abs/0709.1405
dc.identifierhttp://arxiv.org/abs/0709.1405
dc.identifierDans Proceedings of the 6th International Conference on Spoken Language Processing, ICSLP'2000. - 6th International Conference on Spoken Language Processing., Beijing : Chine (2000)
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/137653
dc.subjectMedical Physics
dc.titleDegrees of freedom of tongue movements in speech may be constrained by biomechanics
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