Introduction of constraints in an acoustic-to-articulatory inversion

Yves Laprie 1 Slim Ouni 1
1 PAROLE - Analysis, perception and recognition of speech
INRIA Lorraine, LORIA - Laboratoire Lorrain de Recherche en Informatique et ses Applications
Abstract : Our acoustic to articulatory inversion method exploits an original articulatory table structured in the form of a hypercube hierarchy. The articulatory space is decomposed into regions where the articulatory-to-acoustic mapping is linear. Each region is represented by a hypercube. The inversion procedure retrieves articulatory vectors corresponding to an acoustic entry from the hypercube table. A dynamic procedure is used to recover the best articulatory trajectory according to a minimum articulatory effort criterion. The inversion ensures that inverse articulatory parameters generate original formant trajectories with a very good precision, but not that they are realistic from a phonetic point of view. This papers shows how additional simple articulatory constraints can be incorporated in the inversion process. Constraints are implemented in the form of bonus attached to the points which verify the constraints imposed. This enables the inversion to be guided towards more realistic inverse articulatory trajectories.
Type de document :
Communication dans un congrès
7th International Conference on Spoken Language Processing - ICSLP 2002, 2002, Denver, USA, 2002
Liste complète des métadonnées

https://hal.inria.fr/inria-00107613
Contributeur : Publications Loria <>
Soumis le : jeudi 19 octobre 2006 - 09:03:01
Dernière modification le : jeudi 11 janvier 2018 - 06:19:55
Document(s) archivé(s) le : mercredi 29 mars 2017 - 12:57:32

Identifiants

  • HAL Id : inria-00107613, version 1

Collections

Citation

Yves Laprie, Slim Ouni. Introduction of constraints in an acoustic-to-articulatory inversion. 7th International Conference on Spoken Language Processing - ICSLP 2002, 2002, Denver, USA, 2002. 〈inria-00107613〉

Partager

Métriques

Consultations de la notice

260

Téléchargements de fichiers

64