Conference/Proceedings119th AES Convention
Start date07.10.2005
End date10.10.2005
AddressNew York
Author(s)Tilman Liebchen, T. Moriya, N. Harada, Y. Kamamoto, Y. Reznik
TitleThe MPEG-4 Audio Lossless Coding (ALS) Standard - Technology and Applications
AbstractMPEG-4 Audio Lossless Coding (ALS) is a new extension of the MPEG-4 audio coding family. The ALS core codec is based on forward-adaptive linear prediction, which offers remarkable compression together with low complexity. Additional features include long-term prediction, multichannel coding, and compression of floating-point audio material. In this paper authors who have actively contributed to the standard describe the basic elements of the ALS codec with a focus on prediction, entropy coding, and related tools. We also
present latest developments in the standardization process and point out the most important applications of this new lossless audio format.
NoteT. Moriya, N. Harada, Y. Kamamoto: NTT Communication Science Labs; Y. Reznik: RealNetworks Inc.