Variability of Automatic Speech Recognition Systems Using Different Features

Abstract : The paper describes the use of two recognizers fed by different acoustic features. The first recognizer performs Multiple Resolution Analysis (MRA) while the other recognizer computes JRASTA Perceptual Linear Prediction Coefficients (JRASTAPLP). The two recognizers use the same denoising method but perform different partitions of their acoustic spaces. Experiments with the Italian and Spanish components of the AURORA3 corpus show that the two systems provide, in a significant proportion of cases, substantially different posterior probabilities for the same phoneme in the same time interval. A decision rule is proposed when two different words are hypothesized by the two recognizers. It is based on the probability that a hypothesis is correct, given the identity of the word hypotheses that are in competition. Significant word error rate (WER) reductions have been found for the CH1 proportion of the Italian and Spanish components of the AURORA3 corpus.
Type de document :
Communication dans un congrès
European Conference on Speech Communication and Technology, Interspeech'05, Sep 2005, Lisbon, Portugal. pp.2CP2a-5, 2005
Liste complète des métadonnées

Littérature citée [7 références]  Voir  Masquer  Télécharger

https://hal.archives-ouvertes.fr/hal-00433101
Contributeur : Loïc Barrault <>
Soumis le : mercredi 18 novembre 2009 - 10:55:39
Dernière modification le : samedi 23 mars 2019 - 01:22:03
Document(s) archivé(s) le : jeudi 17 juin 2010 - 18:51:14

Fichier

Barrault-EUROSPEECH2005.pdf
Fichiers produits par l'(les) auteur(s)

Identifiants

  • HAL Id : hal-00433101, version 1

Citation

Loïc Barrault, Renato De Mori, Roberto Gemello, Franco Mana, Driss Matrouf. Variability of Automatic Speech Recognition Systems Using Different Features. European Conference on Speech Communication and Technology, Interspeech'05, Sep 2005, Lisbon, Portugal. pp.2CP2a-5, 2005. 〈hal-00433101〉

Partager

Métriques

Consultations de la notice

346

Téléchargements de fichiers

68