Speech Enhancement Using Robust Generalized Sidelobe Canceller with Multi-Channel Post-Filtering in Adverse Environments  

作　　者：LI Kai FU Qiang YAN Yonghong 

机构地区：[1]Key Laboratory of Speech Acoustics and Content Understanding, Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190, China

出　　处：《Chinese Journal of Electronics》2012年第1期85-90,共6页电子学报（英文版）

摘　　要：In this paper, we propose a speech en- hancement algorithm which has the feature of interaction between adaptive beamforming and multl-channel post- filtering. A novel subband feedback controller based on speech presence probability is applied to Generalized Side- lobe Canceller algorithm to obtain a more robust adap- tive beamforming in adverse environment and alleviate the problem of signal cancellation. A multi-channel post- filtering is used not only to further suppress diffuse noises and some transient noises, but also to give the speech pres- ence probability information in each subband. Experimen- tal results show that the proposed algorithm achieves con- siderable improvement on signal preservation of the desired speech in adverse noise environments over the comparative algorithms.

关 键 词：Speech enhancement Microphone ar- ray Generalized sidelobe canceller Adaptive filter Post- filtering. 

分 类 号：TN204[电子电信—物理电子学] TN912.34