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A Closer Look into MPEG-4 High Efficiency AAC

MPEG Spectral Band Replication (SBR) is the newest compression technology available as part of the MPEG standards. It is combined with MPEG Advanced Audio Coding (AAC) and improves coding efficiency by more than 30%. The resulting scheme is called High-Efficiency AAC (HE-AAC). This presentation will explain MPEG-SBR and its integration into the existing MPEG-4 bitstream format. The SBR technology itself as well as the implications on systems based on MPEG-4 technology are described. The signaling through MPEG-4 Systems and other transport formats is introduced and typical applications and usage scenarios will be listed.

Authors: Wolters, Martin; Kjorling, Kristofer; Homm, Daniel; Purnhagen, Heiko
Affiliations: Coding Technologies, Nurnberg, Germany ; Coding Technologies, Stockholm, Sweden(See document for exact affiliation information.)
AES Convention:115 (October 2003) Paper Number:5871 Import into BibTeX
Subject:Low Bit-Rate Audio coding

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E-Library Location: (CD aes20)   /pp2003/pp0310/00020.pdf

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