A scalable lossy to lossless audio coder for MPEG-4 lossless audio coding

Author

Yu, Rongshan ; Lin, Xiao ; Rahardja, Susanto ; Ko, C.C.

Author_Institution

Inst. for. Infocomm Res., Singapore, Singapore

Volume

3

fYear

2004

fDate

17-21 May 2004

Abstract

In this paper, we present Advanced Audio Zip (AAZ), a scalable lossless audio coding technology that was recently selected as the reference model for MPEG audio scalable lossless coding (SLS) work. AAZ provides excellent compression performance while delivering fine grain bit-rate scalability from lossy to lossless coding. Moreover, AAZ provides backward compatibility to the MPEG advanced audio coding (AAC) system by embedding an AAC compliant bit-stream into the lossless bit-stream. As a result, AAZ serves as a universal coding solution with functionalities that were previously offered by several distinct audio coding technologies such as lossless audio coding, perceptual audio coding, or scalable audio coding; and maximizes the interchangeability for digital audio contents migrating among these application domains.

Keywords

audio coding; data compression; discrete cosine transforms; AAC compliant bit-streams; AAZ; Advanced Audio Zip; MPEG advanced audio coding backward compatibility; MPEG-4 lossless audio coding; compression performance; digital audio content interchangeability; fine grain bit-rate scalability; integer modified discrete cosine transform; perceptual audio coding; scalable lossy to lossless audio coder; Application software; Audio coding; Audio compression; Bandwidth; Laser sintering; MPEG 4 Standard; Performance loss; Scalability; Streaming media; Transform coding;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 2004. Proceedings. (ICASSP '04). IEEE International Conference on

ISSN

1520-6149

Print_ISBN

0-7803-8484-9

Type

conf

DOI

10.1109/ICASSP.2004.1326717

Filename

1326717