摘要
消回声的处理是长话通信中的一个关键技术,也是电视会议系统中必须解决的一个重要问题。本文讨论了电视会议系统中声音传输产生回声的特点、AEC(Acoustic Echo Canceller)的设计方法及其关键技术。文中所阐述的算法已在电视会议系统中实时实现了软件的消回声处理。
Echo cancellation is a key technique in the long-distance telephone communication, and also an important problem which has to be resolved in a video conference system. This paper studies the performance of echo produced during audio transmission, and designs the method of AEC and its key technique. The algorithm discussed in the paper has realized real time echo cancellation with software in our video conference system.
出处
《计算机应用与软件》
CSCD
北大核心
2001年第7期54-58,共5页
Computer Applications and Software
