Ircam-Centre Pompidou

Recherche

  • Recherche simple
  • Recherche avancée

    Panier électronique

    Votre panier ne contient aucune notice

    Connexion à la base

  • Identification
    (Identifiez-vous pour accéder aux fonctions de mise à jour. Utilisez votre login-password de courrier électronique)

    Entrepôt OAI-PMH

  • Soumettre une requête

    Consulter la notice détailléeConsulter la notice détaillée
    Version complète en ligneVersion complète en ligne
    Version complète en ligne accessible uniquement depuis l'IrcamVersion complète en ligne accessible uniquement depuis l'Ircam
    Ajouter la notice au panierAjouter la notice au panier
    Retirer la notice du panierRetirer la notice du panier

  • English version
    (full translation not yet available)
  • Liste complète des articles

  • Consultation des notices


    Vue détaillée Vue Refer Vue Labintel Vue BibTeX  

    Catégorie de document Article ou chapitre dans un livre
    Titre Transformation of Expressivity in Speech
    Auteur principal Grégory Beller
    Paru dans The Role of Prosody in the Expression of Emotions in English and in French, 2009, Peter Lang
    Année 2009
    Statut éditorial Accepté - publication en cours
    Résumé

    In this chapter, a review of theories that deal with controlness of emotional reactions raises the difficulty of evaluating the degree of spontaneity in an emotion by observing only its external expression. Although empirical methods involving direct and indirect measurements have been used to collect emotional data, it is difficult for them to identify the inherent degree of control the speaker has on his emotional reaction, whether it is simulated or not. Therefore emotions and their corresponding expressions have to be distinguished. We provide an attempt at defining expressivity as an information level of communication. It involves all perceivable demonstrations, controlled or not, of an internal state that can be interpreted as uncontrolled. Expressivity can formally be separated from other information levels, e.g. speaker identity, speaking style, modality and prominence. In practise, the task is harder since all these information levels share the same paralinguistic channel composed of restructurings of verbal words and non verbal sounds, all modulated by prosody. This problem can be solved by discarding prosodic variations due to other information levels, e.g. involving the so-called neutral case. By the use of contextual clustering an expressive French corpus, significant prosodic variations can be attributed to the change of the expressivity. A statistical context-dependent method is described. The resulting speaker independent model of expressivity is used to modify the expressivity of a neutral utterance, either recorded or synthesized. The proposed method is aimed at artistic ends, but also participates to the anthropomorphisation of Human-machine interfaces.

    Mots-clés speech / emotion / expressivity / prosody / transformation
    Equipes Analyse et synthèse sonores, Interfaces Recherche/Création
    Cote Beller09c
    Adresse de la version en ligne http://articles.ircam.fr/textes/Beller09c/index.pdf

    © Ircam - Centre Pompidou 2005.