声学回声消除技术(AEC)在会议扩声系统的应用  

Application of Acoustic Echo Cancellation in Conference PA System

作　　者：潘晓东 

机构地区：[1]安恒利(国际)有限公司,广东广州510100

出　　处：《电声技术》2012年第2期10-14,24,共6页Audio Engineering

摘　　要：从分析声学回声在电话会议的互联互通会议中的形成过程出发,解析了何为声反馈、回声及声学回声。详细讲解了声学回声的形成原理、过程以及危害所在,并提出在电话会议室会议扩声系统中消除声学回声的技术方法。Based on the analysis of formation process of acoustic echo in the interconnection of a tele conference, acoustic feedback, echo and acoustic echo are analyzed. The formation principles, formation process and hazards of acoustic echo are explained in detail,and the technical solutions of acoustic echo cancellation in conference PA system are proposed.

关 键 词：声反馈 回声 声学回声 声学回声消除 电话会议系统 

分 类 号：TB54[理学—物理]