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基于ZL38003的声回波抑制器的设计和实现
引用本文:袁三男,王绍徐.基于ZL38003的声回波抑制器的设计和实现[J].上海电力学院学报,2008,24(2):141-144,148.
作者姓名:袁三男  王绍徐
作者单位:上海电力学院,计算机与信息工程学院,上海,200090
摘    要:电视电话通信中经常出现回波现象,使得通话质量大受影响.研究了回波产生及抑制原理,介绍了卓联半导体公司的语音处理芯片ZL38003,叙述了该器件的工作原理,并基于ZL38003和ADSP_BF 532实现了回波抑制器,详细介绍了软硬件设计的方法和实现过程中应注意的问题.设计的系统得到了广泛的应用.

关 键 词:回波抑制  ZL38003  硬件实现  软件配置
收稿时间:2007/10/18 0:00:00

Design and Realization of Acoustic Echo Canceller Based on ZL38003
YUAN San-nan and WANG Shao-xu.Design and Realization of Acoustic Echo Canceller Based on ZL38003[J].Journal of Shanghai University of Electric Power,2008,24(2):141-144,148.
Authors:YUAN San-nan and WANG Shao-xu
Affiliation:School of Computer and Information Engineering, Shanghai University of Electric Power, Shanghai 200090, China and School of Computer and Information Engineering, Shanghai University of Electric Power, Shanghai 200090, China
Abstract:Echo is always generated in voice communication system,influencing the quality of communication.This paper describes echo generation and cancellation,introducing a good Acoustic Echo Canceller(AEC) chip ZL38003 of Zarlink Semiconductor incorporation,describing its function and principles. It realizes an AEC device based on ZL38003 and ADSP_BF 532,and describes the hardware and software design method in detail.It also presents the problems in the design.The design system is widely used in practice.
Keywords:echo cancellation  ZL38003  hardware design  software configuration
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