Improved Speech Enhancement Based on Higher order Cumulants

被引：0
|
作者：
Wang Hong [1 ]
Fan Wei-wei [1 ]
机构：
[1] 309 Hosp Chinese PLA, Dept Informat, Beijing, Peoples R China
来源：
2013 NINTH INTERNATIONAL CONFERENCE ON INTELLIGENT INFORMATION HIDING AND MULTIMEDIA SIGNAL PROCESSING (IIH-MSP 2013) | 2013年
关键词：
Speech enhancement; higher order cumulant; MMSE; speech absence probability;
D O I：
10.1109/IIH-MSP.2013.146
中图分类号：
TP18 [人工智能理论];
学科分类号：
081104 ; 0812 ; 0835 ; 1405 ;
摘要：
A new speech enhancement scheme based on higher order cumulants (HOC) is proposed. Under the condition of Gaussian noise, a method for estimating the probability of speech absence in each frequency bin of each frame is devised based on HOC. Further, a kind of modified Minimum Mean Square Error (MMSE) estimator based on HOC is proposed. Objective measurements and subjective tests show that the proposed algorithm could restrain the residual noise and "musical noise" more effectively than the traditional spectral subtraction method and MMSE method particularly under the condition of low signal-to-noise ratio (SNR).
引用
收藏
页码：567 / 570
页数：4
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