[1]谢维波,王正腾.采用预测残差的回声消除单双端检测算法[J].华侨大学学报(自然科学版),2017,38(2):201-206.[doi:10.11830/ISSN.1000-5013.201702013]
　XIE Weibo,WANG Zhengteng.Echo Cancellation Single and Double-Talk Detection Algorithm Using Predictive Residuals[J].Journal of Huaqiao University(Natural Science),2017,38(2):201-206.[doi:10.11830/ISSN.1000-5013.201702013]
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采用预测残差的回声消除单双端检测算法()
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《华侨大学学报（自然科学版）》[ISSN:1000-5013/CN:35-1079/N]

卷:
第38卷
期数:
2017年第2期
页码:
201-206
栏目:
出版日期:
2017-03-20

文章信息/Info

Title:
Echo Cancellation Single and Double-Talk Detection Algorithm Using Predictive Residuals
文章编号:
1000-5013(2017)02-0201-06
作者:
谢维波;  王正腾
华侨大学 计算机科学与技术学院, 福建 厦门 361021
Author(s):
XIE Weibo;  WANG Zhengteng
College of Computer Science and Technology, Huaqiao University, Xiamen 361021, China
关键词:
回声消除;  自适应滤波预测残差;  阈值选择;  权值复用与更新机制
Keywords:
echo canceller;  prediction error of adaptive filter;  threshold selection;  working mechanism of weight reuse and update
分类号:
TP311
DOI:
10.11830/ISSN.1000-5013.201702013
文献标志码:
A
摘要:
在单端与双端状态下,自适应滤波器的预测残差数值迥异,对预测残差数值进行归一化处理,拉开单端、双端状态的数值差距,扩大阈值范围.提出基于预测残差的回声消除单双端判断方法,并提出在单双端交界处使用自适应滤波器权值复用与更新机制,以及算法的实现步骤.实验结果表明:该算法具有宽广的阈值选择范围,可以有效防止因单双端误判引起的滤波器发散,减小总的回声消除预测误差.
Abstract:
In the condition of single-talk and double-talk, the predictive residual data of self-adapting filter is different. this article set normalization processing in predictive residual data, opened numerical gap in single-talk and double-talk, and expanded the scope of the threshold value, then this article put forward the echo cancellation single and double-talk judgment method based on predictive residuals. And put forward that it can use the adaptive filter working mechanism of weight reuse and update in single-talk and double-talk junction. At last, the implementation steps of the algorithm are also given. The experimental results showed that this algorithm has a wide range of threshold selection, it can effectively prevent the filter divergence caused by inaccurate double-talk detection and reduce the total echo cancellation prediction error.

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备注/Memo

备注/Memo:
收稿日期: 2015-11-24
通信作者: 谢维波(1964-),男,教授,博士,主要从事现代信号处理理论研究与实践、嵌入式应用的研究.E-mail:xwblxf@hqu.edu.cn.
基金项目: 国家自然科学基金资助项目(61271383); 福建省战略性新兴产业发展专项(［2013］866)
更新日期/Last Update: 2017-03-20