Enhanced aacPlus编码器中参数立体声技术的参数优化研究  

Research on Parameter Optimization in Parametric Stereo Coding Technology in Enhanced aacPlus

作　　者：陈茜[1] 黄秋元[1] 刘铁[1] 刘丹[1] 

机构地区：[1]武汉理工大学信息工程学院,湖北武汉430070

出　　处：《电声技术》2008年第4期57-60,65,共5页Audio Engineering

摘　　要：通过对通用的参数立体声编解码方案及立体声参数进行研究,提出了一种降低参数传输比特率的新方法,并对此方法进行了性能上的仿真分析。该方法算法复杂度低,不会增加解码器的复杂度,并且性能上不会出现明显的降低。On the base of researching the general coding scheme of PS（Parametric Stereo） and the stereo, a new scheme to reduce the transmitting rate of parameters is put forward, and the performance of the new scheme is also analyzed. The complexity of the scheme is low, and the complexity of the decoder is not increased. It is also proved that the performance of the new scheme is at least as well as before.

关 键 词：参数立体声 声道间强度差别 声道间互相关 声道间相位差别 整体相位差别 

分 类 号：TN912.3[电子电信—通信与信息系统]