Fast algorithm for computing in MPEG the forward and inverse MDCT audio coding

被引：15
|
作者：
Truong, TK [1 ]
Chen, PD
Cheng, TC
机构：
[1] I Shou Univ, Dept Informat Engn, Coll Elect & Informat Engn, Ta Hsu Hsiang 84008, Kaohsiung Cty, Taiwan
[2] Univ So Calif, Dept Elect Engn Electrophys, Los Angeles, CA 90089 USA
来源：
SIGNAL PROCESSING | 2006年 / 86卷 / 05期
关键词：
MDCT/IMDCT; audio coding; type-II DCT; MPEG;
D O I：
10.1016/j.sigpro.2005.07.027
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The modified discrete cosine transform (MDCT) is always employed in transform-coding schemes as the analysis/ synthesis filter bank. In this paper, an efficient algorithm for MDCT and inverse MDCT (IMDCT) computation for MPEG-1 audio layer III and MPEG-2 international audio-coding standards is proposed, using only the type-II DCT. Finally, the proposed algorithm is compared to the similar algorithms in this paper. (C) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码：1055 / 1060
页数：6
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