Skip to Main content Skip to Navigation
Theses

Modélisation tridimensionnelle des organes de la parole à partir d'images IRM pour la production de nasales - Caractérisation articulatori-acoustique des mouvements du voile du palais.

Abstract : The goal of this work was the articulatory-acoustic characterization of nasality: the nature of velopharyngeal port movement and associated acoustic characteristics. The building of a 3D linear single-subject articulatory model of the nasal tract from MRI and CT images revealed two degrees of freedom for the movements of the velum and nasopharyngeal wall. The dominant parameter corresponds to a joint vertical oblique movement of the velum and a horizontal movement of the pharyngeal wall, expressing the sphincter effect of the velopharyngeal port. The second parameter corresponds to a smaller movement of the velum, significantly modifying the nasal coupling area. The space covered by the model's movements corresponds precisely to that described by a velum point measured by electromagnetic articulography. Realistic area functions of the nasal tract derived from the model allowed us to determine acoustic transfer functions for seven vowels and the acoustic influence of velar movements.
Document type :
Theses
Domain :
Complete list of metadatas

https://tel.archives-ouvertes.fr/tel-00156977
Contributor : Antoine Serrurier <>
Submitted on : Monday, June 25, 2007 - 10:11:12 AM
Last modification on : Friday, November 6, 2020 - 4:36:56 AM
Long-term archiving on: : Thursday, April 8, 2010 - 9:26:54 PM

Identifiers

  • HAL Id : tel-00156977, version 1

Collections

Citation

Antoine Serrurier. Modélisation tridimensionnelle des organes de la parole à partir d'images IRM pour la production de nasales - Caractérisation articulatori-acoustique des mouvements du voile du palais.. domain_stic.othe. Institut National Polytechnique de Grenoble - INPG, 2006. Français. ⟨tel-00156977⟩

Share

Metrics

Record views

425

Files downloads

1480