一种基于最小能量统计的语音增强改进算法  

An Improved Speech Enhancement Algorithm Based on Minimum Statistics

作　　者：翟士奇[1] 卢晶[1] 邹海山[1] 

机构地区：[1]南京大学声学研究所,江苏南京210093

出　　处：《电声技术》2012年第9期41-43,57,共4页Audio Engineering

基　　金：国家自然科学基金项目(11004101)

摘　　要：针对基于最小能量统计的语音增强算法,用可靠的噪声段检测方法对噪声谱估计流程进行改进,提升噪声谱幅度估计的准确度。实验表明,此方法能有效地追踪背景噪声的变化情况,进而提升语音增强的效果。An improved speech enhancement algorithm based on minimum statistics is proposed in this paper. The noise power estimation scheme is improved by using a reliable noise frame detection method. The experiment result shows that the proposed method can trace the variation of the noise floor efficiently, and lead to an improved speech enhancement result.

关 键 词：语音增强 谱估计 非稳态噪声 

分 类 号：TN912[电子电信—通信与信息系统]