Vowel and prosodic factor dependent variations of vocal-tract length

Shinji Maeda 1 Yves Laprie 2
2 PAROLE - Analysis, perception and recognition of speech
Inria Nancy - Grand Est, LORIA - NLPKD - Department of Natural Language Processing & Knowledge Discovery
Abstract : We have measured total vocal-tract (VT) length, lip-tube length and glottal height during vowels on X-ray film data of short French utterances [1]. VT midpoints are determined by progressively fitting circles along the VT-length from the glottis to lip opening. The VT-length is obtained by summing up the distance between adjacent midpoints. Lip-tube length is defined as the distance between the incisors and the lip opening along the midline. Results show that the range of VT-length variation is 3.2cm with the average VT-length of 16.4cm. The cause of this large range appears to be the combination of the vowel dependent VT-length and prosodic position that influences on the glottal height. For example, during a vowel at sentence final position, glottis goes down with falling intonation or up with rising intonation corresponding to, respectively, VT lengthening or shortening. The lip-tube lengths are little affected by prosodic position and exhibit a clear vowel dependency. The prosodic influences manifested on the glottal height are not compensated but rather expanded in the VT-length, yet maintaining the characteristic vowel-dependency. This suggests an underlying mechanism to maintain a uniform stretching/compression of VT-length, which tends to hold the phonetic value of a vowel under large VT-length changes.
Type de document :
Communication dans un congrès
InterSpeech - 14th Annual Conference of the International Speech Communication Association - 2013, Aug 2013, Lyon, France. 2013
Liste complète des métadonnées

Littérature citée [10 références]  Voir  Masquer  Télécharger

https://hal.inria.fr/hal-00836829
Contributeur : Yves Laprie <>
Soumis le : vendredi 21 juin 2013 - 15:26:45
Dernière modification le : jeudi 11 janvier 2018 - 06:25:24
Document(s) archivé(s) le : dimanche 22 septembre 2013 - 04:09:45

Fichier

901_file_Paper.pdf
Fichiers produits par l'(les) auteur(s)

Identifiants

  • HAL Id : hal-00836829, version 1

Citation

Shinji Maeda, Yves Laprie. Vowel and prosodic factor dependent variations of vocal-tract length. InterSpeech - 14th Annual Conference of the International Speech Communication Association - 2013, Aug 2013, Lyon, France. 2013. 〈hal-00836829〉

Partager

Métriques

Consultations de la notice

288

Téléchargements de fichiers

148