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| An Improved Speech Enhancement Method Based on SVD |
| Zhang Li-yan①②;Yin Fu-liang① |
| ①School of Electronic and Information Engineering, Dalian Univ. of Tech., Dalian 116024, China; ②School of Electrical Engineering, Dalian Jiaotong Univ., Dalian 116028, China |
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Abstract This paper applies the microphone array speech enhancement method to the single microphone speech enhancement method, and proposes a new speech enhancement method based on Singular Value Decomposition(SVD). First, for the input matrix, the method adopts Jacobi singular value decomposition to get the singular value vector as the speech enhancement filter. Then the method multiplies the input matrix and the coefficient matrix of the filter to constitute the so called each channel signals. Finally, the method adopts microphone array beamforming method to gain the enhanced speech. The simulation shows that the proposed method can get rid of the addictive noise very well, and improve the speech quality.
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Received: 22 December 2006
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2008, Vol. 30 
