改进的虚拟声四扬声器重放信号处理方法  

An Improved Signal Processing Algorithm for Virtual Sound Using Four Loudspeakers

作　　者：石亮政[1] 谢菠荪[1] 

机构地区：[1]华南理工大学物理科学与技术学院声学研究所,广东广州510641

出　　处：《电声技术》2007年第4期41-44,共4页Audio Engineering

基　　金：国家自然科学基金(10374031);广州市科技计划(2005Z3-D0071)资助项目

摘　　要：分析了传统虚拟声2扬声器和现有4扬声器重放系统的缺陷,提出了一种改进的4扬声器重放信号处理的方法。实验结果表明,新方法可得到水平面360°内稳定的声像效果,特别是侧向声像效果有明显的改善,该方法可用于多媒体计算机和多通路环绕声的虚拟重放。The defects of the traditional virtual sound with two loudspeakers and current virtual sound with four loudspeakers are analyzed. Then a new signal processing algorithm for four loudspeakers reproduction is proposed. Experimental results show that the new algorithm is able to recreate stable 360° sound image in horizontal plane, and able to improve lateral sound image obviously. Therefore the new signal processing algorithm is suitable to be used in multimedia computers and virtual reproduction of multichannel sound.

关 键 词：虚拟声 声重放 声像 

分 类 号：TB52[理学—物理]