musique contemporaine

Ircam - articles scientifiques notice originale

Extending efficient spectral envelope modeling to mel-frequency based representation

Type

text
 

Genre(s)

article
 

Forme(s)

document numérique
 

Accès sur site

  • Version numérique intégrale de l'article
 

Cette ressource est disponible chez l'organisme suivant : Ircam - Centre Pompidou

Identification

Titre

Extending efficient spectral envelope modeling to mel-frequency based representation
 

Nom(s)

Villavicencio, Fernando (auteur)
 
Robel, Axel (auteur)
 
Rodet, Xavier (auteur)
 

Publication

Las Vegas, , 2008
 

Description

Sujet(s)

speech synthesis   speech analysis   envelope detection   speech codecs   speech enhancement
 

Résumé

In this work we consider the problem of spectral envelope estimation using spectra with perceptually warped frequency axis. The goal of this work is the reduction of the order of the spectral envelope model which will facilitate the use of these envelopes for training of voice conversion systems. We adapt the True-Envelope estimator to Mel-frequency representations and adapt a recently proposed cepstral model order selection criterion taking into account the distortion of the frequency axis. We evaluate the modified order selection procedure using a perceptual framework for the evaluation of envelope estimation errors. The experimental evaluation carried out with real speech confirms our modifications. The results demonstrate that the mel frequency based true envelope estimator achieves superior envelope estimation with significantly reduced model order.
 

Note(s)

Contribution au colloque ou congrès : ICASSP
 

Localisation

Envoyer la notice

Bookmark and Share 
 

Identifiant OAI

 

Date de la notice

2010-02-25 01:00:00
 

Identifiant portail

 

Contact