English

应用科学学报

• 论文 •    下一篇

利用人耳听觉特性的子带双声道回波抵消

乔 杰， 赵 力， 邹采荣   

  1. 东南大学 无线电工程系，江苏 南京 210096
  • 收稿日期:2007-01-29 修回日期:2007-04-11 出版日期:2007-07-30 发布日期:2007-07-30

Sub-band Stereo Acoustic Echo Cancellation Using Human Auditory

QIAO Jie, ZHAO Li, ZOU Cai-rong   

  1. Radio Engineering Department, Southeast University, Nanjing 210096, China
  • Received:2007-01-29 Revised:2007-04-11 Online:2007-07-30 Published:2007-07-30

被引次数

16

摘要： 提出一种利用人耳听觉特性的双声道回波抵消方法，与传统方法相比能够更快地收敛到“真实”回波路径。我们用子带分解缩短自适应滤波器长度，减小算法复杂度，并在子带分解基础上，利用人耳听觉特性降低输入信号的相关度，使自适应滤波收敛更快。数值实验表明了该方法的有效性。

关键词: 回波抵消, 人耳听觉特性, 子带分解

Abstract: In this paper, a sub-band stereo acoustic echo cancellation using human auditory characteristics is proposed. This method can converge to “true” echo path more quickly than traditional methods. The length of adaptive filters is shortened, and processing complexity reduced by using sub-band decomposition. Based on the sub-band decomposition, correlation of input signals can be reduced by using human auditory characteristics. Thus, the adaptive filters converge faster. Simulation results show validity of the proposed method.

Key words: acoustic echo cancellation(AEC), human auditory characteristics, sub-band decomposition