A new algorithm on short window MDCT for Dolby AC3

被引：0
|
作者：
Zhang, Tao [1 ]
Liu, Shuo [1 ]
He, Jialin [1 ]
Zhang, Hai [1 ]
机构：
[1] Tianjin Univ, Sch Elect & Informat Engn, Tianjin 300072, Peoples R China
来源：
2007 INTERNATIONAL SYMPOSIUM ON INTELLIGENT SIGNAL PROCESSING AND COMMUNICATION SYSTEMS, VOLS 1 AND 2 | 2007年
关键词：
AC-3; MDCT; short/long window; computational structure;
D O I：
暂无
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：
Dolby Lab's AC-3 standard has been widely used in many fields. As an indispensable module, the implementation of MDCT/ IMDCT should be optimized in efficiency and structure. There is a variable parameter in the MDCT definition. Many fast algorithms have been presented to implement MDCT, however the difference among the computational structures of different types of MDCT brings inefficiency in code structure. Here a new algorithm on short MDCT using long MDCT 's computational structure is proposed.
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页码：482 / 485
页数：4
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