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Conference Paper

Optimization of MPEG-2 / MPEG-4 AAC for error prone transmission channels

Authors: Sperschneider, Ralph; Grill, Bernhard; Sanae, Hotani

AES Conference: 18th International Conference: Audio for Information Appliances · Paper 1864 · March 2001

Abstract

MPEG Advanced Audio Coding (AAC) is the newest of the successful MPEG perceptual audio coding standards. While the basic algorithm was standardized as an extension to MPEG-2 in 1997, AAC recently has been substantially enhanced in MPEG-4. New features include additional coding tools for improved efficiency at very low bitrates, bitrate scalability extensions, and tools, which significantly enhance the performance over error prone transmission channels. The paper will report primarily on the work conducted to optimize AAC for environments with potentially high error rates, like 3G mobile networks.

Details

Published in
AES Conference: 18th International Conference: Audio for Information Appliances
Paper number
1864
Publication date
March 6, 2001
Session subject
Audio for Information Appliances
Affiliation
Fraunhofer Institut fuer Integrierte Schaltungen (FhG IIS-A), Erlangen, Germany ; NTT DoCoMo, Inc., Yokosuka, Japan (See document for exact affiliation information.)
Type
Conference Paper