期刊名称：International Journal of Advanced Research In Computer Science and Software Engineering
印刷版ISSN：2277-6451
电子版ISSN：2277-128X
出版年度：2013
卷号：3
期号：5
出版社：S.S. Mishra
摘要：MDCT/ IMDCT is used to realize analysis of filter bank for reduce the time domain aliasing cancellation and scheme for sub-band coding. This paper presents a fast MDCT/IMDCT algorithm for implementation of low complexity by using DCT type ¨CIV coefficients. In algorithm derivation, the MDCT/IMDCT computation is first converted into a form of matrix multiplication consisting of a half size DCT-IV kernel and a projection matrix. The DCT-IV kernel is then realized by a fast DCT-II computing scheme. Since MDCT and IMDCT algorithms use the same DCT kernel, so this paper uses the same architecture for MDCT and IMDCT. The proposed design requires less hardware utilization and less memory complexity for storing the spectral coefficient and temporary data
