InforLorV4, Ncbi, Curation, bibRecord, 000051

Incorporation of phonetic constraints in acoustic-to-articulatory inversion.

Identifieur interne : 000051 ( Ncbi/Curation ); précédent : 000050; suivant : 000052

Incorporation of phonetic constraints in acoustic-to-articulatory inversion.

Auteurs : Blaise Potard [France] ; Yves Laprie ; Slim Ouni

Source :

The Journal of the Acoustical Society of America [ 1520-8524 ] ; 2008.

RBID : pubmed:18397035

Descripteurs français

KwdFr :
- Acoustique, Humains, Mesures de production de la parole, Perception de la parole, Phonétique.
MESH :
- Acoustique, Humains, Mesures de production de la parole, Perception de la parole, Phonétique.

English descriptors

KwdEn :
- Acoustics, Humans, Phonetics, Speech Perception, Speech Production Measurement.
MESH :
- Acoustics, Humans, Phonetics, Speech Perception, Speech Production Measurement.

Abstract

This study investigates the use of constraints upon articulatory parameters in the context of acoustic-to-articulatory inversion. These speaker independent constraints, referred to as phonetic constraints, were derived from standard phonetic knowledge for French vowels and express authorized domains for one or several articulatory parameters. They were experimented on in an existing inversion framework that utilizes Maeda's articulatory model and a hypercubic articulatory-acoustic table. Phonetic constraints give rise to a phonetic score rendering the phonetic consistency of vocal tract shapes recovered by inversion. Inversion has been applied to vowels articulated by a speaker whose corresponding x-ray images are also available. Constraints were evaluated by measuring the distance between vocal tract shapes recovered through inversion to real vocal tract shapes obtained from x-ray images, by investigating the spreading of inverse solutions in terms of place of articulation and constriction degree, and finally by studying the articulatory variability. Results show that these constraints capture interdependencies and synergies between speech articulators and favor vocal tract shapes close to those realized by the human speaker. In addition, this study also provides how acoustic-to-articulatory inversion can be used to explore acoustical and compensatory articulatory properties of an articulatory model.

DOI: 10.1121/1.2885747
PubMed: 18397035

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Le document en format XML

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<term>Humans</term>
<term>Phonetics</term>
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<front><div type="abstract" xml:lang="en">This study investigates the use of constraints upon articulatory parameters in the context of acoustic-to-articulatory inversion. These speaker independent constraints, referred to as phonetic constraints, were derived from standard phonetic knowledge for French vowels and express authorized domains for one or several articulatory parameters. They were experimented on in an existing inversion framework that utilizes Maeda's articulatory model and a hypercubic articulatory-acoustic table. Phonetic constraints give rise to a phonetic score rendering the phonetic consistency of vocal tract shapes recovered by inversion. Inversion has been applied to vowels articulated by a speaker whose corresponding x-ray images are also available. Constraints were evaluated by measuring the distance between vocal tract shapes recovered through inversion to real vocal tract shapes obtained from x-ray images, by investigating the spreading of inverse solutions in terms of place of articulation and constriction degree, and finally by studying the articulatory variability. Results show that these constraints capture interdependencies and synergies between speech articulators and favor vocal tract shapes close to those realized by the human speaker. In addition, this study also provides how acoustic-to-articulatory inversion can be used to explore acoustical and compensatory articulatory properties of an articulatory model.</div>
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Incorporation of phonetic constraints in acoustic-to-articulatory inversion.

Incorporation of phonetic constraints in acoustic-to-articulatory inversion.

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Links to Exploration step

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri

Pour générer des pages wiki