As the latest extension of MPEG-4 Audio coding, MPEG-4 Lossless Audio Coding includes a scalable audio coding solution (SLS) that integrates the functionalities of lossless audio coding, perceptual audio coding, and fine granular scalable audio coding into a single coder framework while providing backward compatibility to MPEG Advanced Audio Coding (AAC) at the bit-stream level. Despite its abundant functionalities, SLS still achieves a compression performance that is comparable to state-of-the-art non-scalable lossless audio coding algorithms. As a result, SLS provides a universal digital audio format for a variety of application domains including professional audio, Internet music, consumer electronics, broadcasting and others. This paper presents the structure of SLS and its latest developments during the MPEG standardization process.

Authors: Geiger, Ralf; Herre, Juergen; Huang, Haibin; Lin, Xiao; Rahardja, Susanto; Yu, Rongshan
Affiliations: Institute for Infocomm Research, Singapore ; Fraunhofer IDMT, Ilmenau, Germany ; Fraunhofer IIS, Erlangen, Germany(See document for exact affiliation information.)
AES Convention: 117 (October 2004) Paper Number: 6183
Publication Date: October 1, 2004
Subject: Lossy and Lossless Audio Coding

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