Robust critical data recovery for MPEG-4 AAC encoded bitstreams

Abstract : This paper presents a bandwidth-efficient method for improved decoding of critical data generated by the MPEG-4 AAC audio coder when encoded bitstreams are transmitted over noisy channels. The critical data of each encoded frame is estimated using the redundancy due to the correlation between successive frame headers and using an optional CRC as an error-correcting code. Simulation results for an AWGN channel show a substantial link budget improvement (more than 5 dB) compared to a classical hard-decoding method. Once critical data are efficiently estimated, the work of previously proposed joint source-channel decoding techniques to recover the remaining parts of the MPEG4 AAC frames is significantly facilitated.
Type de document :
Communication dans un congrès
International Conference on Acoustics, Speech, and Signal Processing, Mar 2010, Dallas, Texas, United States. pp.2358-2361, 2010, 〈10.1109/ICASSP.2010.5495793〉
Liste complète des métadonnées

Littérature citée [24 références]  Voir  Masquer  Télécharger

https://hal.archives-ouvertes.fr/hal-00549215
Contributeur : Michel Kieffer <>
Soumis le : mardi 21 décembre 2010 - 14:31:12
Dernière modification le : lundi 17 septembre 2018 - 10:04:06
Document(s) archivé(s) le : mardi 22 mars 2011 - 03:00:45

Fichier

ICASSP_HU_10_v2.pdf
Fichiers produits par l'(les) auteur(s)

Identifiants

Citation

Ruijing Hu, Xucen Huang, Michel Kieffer, Olivier Derrien, Pierre Duhamel. Robust critical data recovery for MPEG-4 AAC encoded bitstreams. International Conference on Acoustics, Speech, and Signal Processing, Mar 2010, Dallas, Texas, United States. pp.2358-2361, 2010, 〈10.1109/ICASSP.2010.5495793〉. 〈hal-00549215〉

Partager

Métriques

Consultations de la notice

500

Téléchargements de fichiers

248