11th Annual Conference of the International Speech Communication Association

Makuhari, Chiba, Japan
September 26-30. 2010

Speech Enhancement Using Improved Generalized Sidelobe Canceller in Frequency Domain with Multi-Channel Postfiltering

Kai Li, Qiang Fu, Yonghong Yan

Chinese Academy of Sciences, China

In this paper, we propose a speech enhancement algorithm which has the feature of interaction between adaptive beamforming and multi-channel postfilter.A novel subband feedback controller based on speech presence probability is applied to Generalized Sidelobe Canceller algorithm to obtain a more robust adaptive beamforming in adverse environment and alleviate the problem of signal cancellation. A multi-channel postfiltering is used not only to further suppress diffuse noises and some transient interferences, but also to give the speech presence probability information in each subband. Experimental results show that the proposed algorithm achieves considerable improvement on signal preservation of the desired speech in adverse noise environments,consisting of both directional and diffused noises over the comparative algorithms.

Full Paper

Bibliographic reference.  Li, Kai / Fu, Qiang / Yan, Yonghong (2010): "Speech enhancement using improved generalized sidelobe canceller in frequency domain with multi-channel postfiltering", In INTERSPEECH-2010, 973-976.