用于说话人识别的电话信道补偿技术  

Telephone Channel Compensation Technique for Speaker Recognition

作　　者：张磊[1] 王文华[1] 郑贵滨 

机构地区：[1]哈尔滨工程大学信息与通信工程学院,哈尔滨150001

出　　处：《计算机工程》2008年第13期84-86,共3页Computer Engineering

基　　金：黑龙江省博士后基金资助项目;哈尔滨工程大学基金资助项目

摘　　要：在说话人识别平台上,针对碳键型电话产生的线性和非线性失真带来的影响,提出一个系统的补偿框架。通过研究电话信道对频谱包络的影响,从留数角度分析虚峰出现的原因,结合留数归一化方法和传统的倒谱均值减,对中间维的倒谱加以提升。实验结果表明,在训练环境和测试环境不匹配的情况下,该方法具有较好的顽健性。Based on the speaker recognition system, the linear and nonlinear influences of carbon-button telephone channel are discussed. A compensation system is proposed to weaken those effects. By researching the frequency difference between telephone channel and traditional channel, the phantom formants are found, which can be reduced by normalization of its residues. Combined with CMS and ceptral lifter, the system is more robust under mismatch environment.

关 键 词：电话信道补偿 留数归一化 自适应成分加权 倒谱均值减 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]