数字混音模型的设计与实现  

Design and implementation of digital mixing model

作　　者：黄梅[1] 洪玫[1] 卢扬[1] 胡元甲[1] 

机构地区：[1]四川大学计算机学院,四川成都610065

出　　处：《计算机工程与设计》2010年第16期3625-3627,3631,共4页Computer Engineering and Design

基　　金：国家863高技术研究发展计划基金项目(2006AA12A104)

摘　　要：混音是VoIP系统中的一个关键环节,通过对现有常用的混音算法的分析比较,引入声音音量这一对声音质量有较大影响的因素参数。在此基础上,改进了权重系数混音算法,从而提出了一种权重系数补偿混音算法。该算法运算复杂度较低,混音效果清晰、自然、流畅,避免了音量大小及突变等问题,可广泛应用于各类VoIP系统中。Mixing is a key point in VoIP system.By analysis and comparing with existing mixing algorithms,the sound volume of factor parameters is introduced,which influenced the quality of sound greatly.Then,a weight factor compensation mixing algorithm is proposed by improving the weight factor mixing algorithm.This algorithm has lower computing complexity and causes more obvious,natural and smooth mixing effects.It avoids the size and mutation of volume and is applied into various types of VoIP systems widely,which get the promotion of a certain significance.

关 键 词：VOIP 混音 权重系数补偿 权重混音 饱和混音 

分 类 号：TP301[自动化与计算机技术—计算机系统结构]