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投稿时间:2007-10-18
投稿时间:2007-10-18
中文摘要: 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-BF532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.
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.
文章编号:20080211 中图分类号: 文献标志码:
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引用文本:
袁三男,王绍徐.基于ZL38003的声回波抑制器的设计和实现[J].上海电力大学学报,2008,24(2):141-144,148.
YUAN San-nan,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.
袁三男,王绍徐.基于ZL38003的声回波抑制器的设计和实现[J].上海电力大学学报,2008,24(2):141-144,148.
YUAN San-nan,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.