基于先验信噪比参数自适应的频域联合语音增强方法  

A Spectral Domain Compounded Speech Enhancement Algorithm Based on Parameter Adaptive Spectral Method According to A Priori SNR

作　　者：陈紫强[1] 曾庆宁[1] 刘庆华[1] 

机构地区：[1]桂林电子工业学院通信与信息工程系,桂林541004

出　　处：《电子与信息学报》2007年第2期439-442,共4页Journal of Electronics & Information Technology

基　　金：国家自然科学基金(60272038);广西自然科学基金(0141044);广西青年科学基金(0447052)资助课题

摘　　要：该文针对单通道频域语音增强方法存在的问题,提出了一种频域联合语音增强新方法,即将改进的基于先验信噪比频域语音增强方法与迭代谱减法相结合进行语音降噪的方法。实验表明,该方法消噪量大,对语音的损伤小,同时有效地降低了“音乐噪声”。This paper addresses the problem of single-channel speech enhancement using spectral subtraction method. The proposed approach is directed toward combining modified a priori SNR based spectral subtraction algorithm with iterative spectral subtraction algorithm. Experimental results show that the method is quite effective in speech enhancement as it can cancel a large mount of background noise with little distortion to speech signals, and that the method greatly lowered ＂music noise＂.

关 键 词：语音增强 先验信噪比 谱减法 

分 类 号：TN912.3[电子电信—通信与信息系统]