Lossless coding will become the latest extension of the MPEG-4 audio standard. The lossless audio codec of the Technical University of Berlin was chosen as reference model for MPEG-4 Audio Lossless Coding (ALS). The MPEG-4 ALS encoder is based on linear prediction, which enables high compression even with moderate complexity, while the corresponding decoder is straightforward. The paper describes the basic elements of the codec as well as some additional features, gives compression results, and points out envisaged applications.

Authors: Liebchen, Tilman; Reznik, Yuriy; Moriya, Takehiro; Yang, Dai Tracy
Affiliations: Technical University of Berlin, Germany ; RealNetworks, Inc., Seattle, WA ; NTT Human and Information Science Lab, Atsugi, Japan ;University of Southern California, Los Angeles, CA(See document for exact affiliation information.)
AES Convention: 116 (May 2004) Paper Number: 6047
Publication Date: May 1, 2004
Subject: Low Bit-Rate Audio Coding

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