Improved Spectral Subtraction Speech Enhancement Algorithm

摘要：

　　The paper addresses the problems of speech distortion and residual musical noise introduced by conventional spectral subtraction (SS) method for speech enhancement.In this paper,we propose a modified SS algorithm for speech enhancement based on the masking properties of human auditory system.The algorithm computes the parameters α and β dynamically according to the masking thresholds of the critical frequency segments for each speech frame.Simulation results show that the proposed algorithm is superior to the conventional SS method,not only in the improvement of output SNR,but in the reduction of the speech distortion and residual musical noise.

关键词： Speech Enhancement Spectral Subtraction Masking Properties Human Auditory System

作者: Yuhon g Liu Dongmei Zhou Zhaniun Jian

作者单位: Institute of Electrical and Information Engineering,Lanzhou Jiaotong University,LZJTU,Lanzhou,730070 National Mobile Communications Research Lab,South-east University,SEU,Nanjing,210018,China

会议类型: 国际会议

会议名称: 2013 2nd international Conference on Opto-Electronics Engineering and Materials Eesearch(2013第二届光电工程与材料研究国际会议)(OEMR2013)

会议地点: 郑州

会议语种:英文

页码: 304-308

在线出版日期: 2013-10-19（万方平台首次上网日期，不代表论文的发表时间）