Speech enhancement using harmonic regeneration

Cyril Plapous 1 Claude Marro 1 Pascal Scalart 2
2 R2D2 - Reconfigurable and Retargetable Digital Devices
IRISA - Institut de Recherche en Informatique et Systèmes Aléatoires, INRIA Rennes, ENSSAT - École Nationale Supérieure des Sciences Appliquées et de Technologie
Abstract : This paper addresses the problem of single microphone speech enhancement in noisy environments. Common short-time noise reduction techniques introduce harmonic distortion in enhanced speech because of the non reliability of estimators for small signal-to-noise ratios. We propose a new method called Harmonic Regeneration Noise Reduction technique which solves this problem. A fully harmonic signal is calculated based on the distorted signal using a non-linearity to regenerate harmonics in an efficient way. This artificial signal is then used to compute a suppression gain able to preserve the speech harmonics. This method is theoretically analyzed, then objective and formal subjective results are given and show a significant improvement compared to classical noise reduction techniques.
Type de document :
Communication dans un congrès
IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP'2005), Mar 2005, Philadelphia, United States. 2005
Liste complète des métadonnées

Littérature citée [5 références]  Voir  Masquer  Télécharger

https://hal.inria.fr/inria-00482692
Contributeur : Pascal Scalart <>
Soumis le : mardi 11 mai 2010 - 11:05:19
Dernière modification le : mercredi 16 mai 2018 - 11:23:04
Document(s) archivé(s) le : jeudi 16 septembre 2010 - 14:01:56

Fichier

ICASSP055.pdf
Fichiers produits par l'(les) auteur(s)

Identifiants

  • HAL Id : inria-00482692, version 1

Collections

Citation

Cyril Plapous, Claude Marro, Pascal Scalart. Speech enhancement using harmonic regeneration. IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP'2005), Mar 2005, Philadelphia, United States. 2005. 〈inria-00482692〉

Partager

Métriques

Consultations de la notice

937

Téléchargements de fichiers

431