5.1通路环绕声的耳机虚拟重放  

Virtual reproduction of 5.1 channel surround sound by headphone

作　　者：谢菠荪[1] 王杰[1] 管善群[2] 李长滨 

机构地区：[1]华南理工大学应用物理系,广州510641 [2]北京邮电大学电信工程学院,北京100876 [3]TCL王牌(深圳)电子有限公司,深圳518067

出　　处：《声学学报》2005年第4期329-336,共8页Acta Acustica

基　　金：教育部优秀青年教师资助计划TCL王牌电子有限公司项目

摘　　要：提出了一种改进的5.1通路环绕声的耳机虚拟重放信号处理方法。在对现有的信号处理方法进行分析,指出它会产生不自然主观听觉效果后,通过理论和心理声学实验证明,采用HRTF信号处理、环绕声信号去相关等方法,在克服普通耳机声重放的“头中定位”的缺点、虚拟出多环绕扬声器效果的同时,并未带来新的不自然听觉效果。因此信号处理方法可增加听觉上的包围感,从而改善耳机重放的主观听觉效果。An improved signal processing algorithm for virtual reproducing 5.1 channel surround sound by headphone is proposed. Firstly, by analyzing current signal processing algorithm, it is pointed out that current algorithms will create unnatural subjective hearing effect. Then, by using the method of HRTF filtering and surround signal decorrelating, the improved algorithm is not only able to eliminate the defect of in-head-localization in headphone reproduction and simulate the subjective effect of multi surround loudspeakers, but also not to induce other new unnatural effect. Therefore, the improved signal processing algorithm can increase envelopment and improve the subjective effect in headphone reproduction.

关 键 词：HRTF信号处理 通路环绕声 耳机 虚拟重放 听觉效果 

分 类 号：TN912.2[电子电信—通信与信息系统]