Title :
A Scalable and Lossless Audio Coding System based on Integer Transform
Author :
Zhang, Yong ; Gao, Ge
Author_Institution :
Nat. Multimedia Software Eng. Technol. Res. Center, Wuhan Univ.
fDate :
Oct. 18 2006-Sept. 20 2006
Abstract :
The modified discrete cosine transform (MDCT) is widely used in current perceptual audio coding schemes. This paper presents an integer approximation of this lapped transform, called integer MDCT, which is derived from the MDCT using lifting scheme, and a scalable lossless system based on MPEG AAC and Integer MDCT is presented providing a lossless enhancement of AAC coding scheme, which provides bit-exact reconstruction of the input signal independent of the implementation accuracy of the AAC core coder
Keywords :
approximation theory; audio coding; discrete cosine transforms; AAC coding scheme; integer approximation; integer transform; lapped transform; lifting scheme; lossless audio coding system; modified discrete cosine transform; scalable audio coding system; Audio coding; Discrete cosine transforms; Discrete transforms; Electronic mail; Frequency; Multimedia systems; Predictive coding; Sampling methods; Software engineering; Transform coding;
Conference_Titel :
Communications and Information Technologies, 2006. ISCIT '06. International Symposium on
Conference_Location :
Bangkok
Print_ISBN :
0-7803-9741-X
Electronic_ISBN :
0-7803-9741-X
DOI :
10.1109/ISCIT.2006.339979
