基于衰减因子的虚拟环绕系统听音区扩大方法  

A Novel Method to Enlarge Listening Area of Virtual Surround Sound Based on Attenuation Factor

作　　者：黄强[1] 吴一波[1] 何飞[1] 纪震[1] 

机构地区：[1]深圳市嵌入式系统设计重点实验室 深圳大学计算机与软件学院,广东深圳518060

出　　处：《电子学报》2012年第11期2342-2345,共4页Acta Electronica Sinica

基　　金：国家自然科学基金(No.60501026);深圳市科技项目(No.JSA201006090336A)

摘　　要：面向音频多声道虚拟环绕处理的方法,传统的串音抵消是将串音完全抵消掉,听音区窄.本文提出串音信号不必要完全消除,剩余的信号会扩大最佳听音区域的范围并获得更好的音效质量.新算法的主要特点是:算法中加入衰减因子,并给出了衰减因子和听音区的关系.当衰减因子为1时,新的算法完全具有传统算法的功能.For audio multichannel virtual surround sound processing method.The crosstalk was offsetted completely in traditional method for crosstalk cancellation,which limits the optimal listening area.This paper puts forward the non-necessity of completely crosstalk elimination.The proposed method utilizes the remaining crosstalk signal to effectively enlarge the range of the optimal listening area and maintain the same sound quality.The primary features of the proposed algorithm are as follows：the algorithm is jointed with an attenuation factor.Moreover,the algorithm introduces the relationship between the attenuation factor and listening area.In addition,when the attenuation factor value is set to be unit,the new algorithm is fully functional identical to the traditional algorithm.

关 键 词：虚拟环绕 衰减因子 串音消除 扩大听音区 

分 类 号：TN912[电子电信—通信与信息系统]