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Volume 29 Issue 10
Jan.  2011
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Wang Dong-xia, Yin Fu-liang, Jin Nai-gao. Blind Beamforming for Microphone Array Based Speech Enhancement[J]. Journal of Electronics & Information Technology, 2007, 29(10): 2321-2324. doi: 10.3724/SP.J.1146.2006.00292
Citation: Wang Dong-xia, Yin Fu-liang, Jin Nai-gao. Blind Beamforming for Microphone Array Based Speech Enhancement[J]. Journal of Electronics & Information Technology, 2007, 29(10): 2321-2324. doi: 10.3724/SP.J.1146.2006.00292

Blind Beamforming for Microphone Array Based Speech Enhancement

doi: 10.3724/SP.J.1146.2006.00292
  • Received Date: 2006-03-14
  • Rev Recd Date: 2006-08-07
  • Publish Date: 2007-10-19
  • Considering the bad effect of steering vector errors on speech enhancement performance, a new blind beamforming based speech enhancement method is introduced in this paper. The blind beamforming combines fourth-order cross cumulant and Linear Constrained Minimum Variance (LCMV) beamformer, which makes it robust to the steering vector. A multi-channel post-processor is then used to suppress the residual nonstationary noise. Simulations results demonstrate that the proposed method exhibits good noise suppression performance even with the unknown prior knowledge about direction of arrive with respect to speech signal.
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  • Griffiths L J and Jim C W. An alternative approach to linearly constrained adaptive beamforming [J].IEEE Trans. on Antennas and Propagation.1981, 30(1):27-34[2]Zelinski R. A microphone array with adaptive post-filtering for noise reduction in reverberant rooms [A]. IEEE International Conference on Acoustics, Speech and Signal Processing [C], New York, 1988, 5: 2578-2581.[3]Gannot S and Cohen I. Speech enhancement based on the general transfer function GSC and postfiltering [J].IEEE Trans. on Speech and Audio Processing.2004, 12(6):561-571[4]Wang Dongxia and Yin Fuliang. A subband adaptive learning algorithm for microphone array based speech enhancement [A]. Lecture Notes in Computer Science [C], Springer-Verlag GmbH, 2005, 3497: 592-597.[5]Dogan C M and Mendel M J. Cumulant-based blind optimum beamforming [J].IEEE Trans. on Aerospace and Electronic Systems.1994, 30(3):722-740[6]Cardoso F J and Souloumiac A. Blind beamforming for non-Gaussian signals [J].IEE Proceeding on Radar and Signal Processing.1993, 140(6):362-370[7]Gonen E and Mendel M J. Applications of cumulants to array processing Part : ⅢBlind beamforming for coherent signals [J].IEEE Trans. on Signal Processing.1997, 45(9):2252-2264[8]Asano F. Speech enhancement using array signal processing with 4th-order cumulant [A]. Proceedings of Fourth International Conference on Signal Processing [C], Beijing, 1998, 1: 415-418.[9]殷福亮,宋爱军.数字信号处理C语言程序集[M].沈阳:辽宁科学技术出版社,1997:30-34.
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