自适应声回声抵消器  

Adaptive sound echo-counteracted device

作　　者：王宏志 丁宁[1] 

机构地区：[1]长春工业大学计算机科学与工程学院,吉林长春130012

出　　处：《长春工业大学学报》2006年第2期145-149,共5页Journal of Changchun University of Technology

基　　金：吉林省杰出青年科学计划基金资助项目(20010120)

摘　　要：介绍了自适应NLMS声回声抵消算法,并运用DSP对声回声抵消器进行软硬件实现。在基于ITU-T的G.167标准的相关要求下,采用粉红噪声模拟人声的方法对声回声抵消器进行实验,并给出各指标的定义及相关实验过程。The NLMS adaptive sound echo-counteracted algorithm is introduced in the paper. The hardware and software of the sound echo-counteracted device are realized by DSP. To meet the G. 167 standard in ITU-T, we test the performance of the device by using pink yawp to simulate the sound of human beings, give the definition of some indexes and the corresponding experimental process.

关 键 词：自适应 声回声抵消器 DSP NLMS算法 

分 类 号：TN912.34[电子电信—通信与信息系统]