Speech enhancement by multichannel crosstalk resistant ANC and improved spectrum subtraction

Authors:
Qingning Zeng;Waleed H. Abdulla
Affiliations:
Department of Electrical and Computer Engineering, The University of Auckland, Private Bag, Auckland, New Zealand;Department of Electrical and Computer Engineering, The University of Auckland, Auckland, New Zealand
Venue:
EURASIP Journal on Applied Signal Processing
Year:
2006

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Abstract

A scheme combining multichannel crosstalk resistant adaptive noise cancellation (MCRANC) algorithm and improved spectrum subtraction (ISS) algorithm is presented to enhance noise carrying speech signals. The scheme would permit locating the microphones in close proximity by virtue of using MCRANC which has the capability of removing the crosstalk effect. MCRANC would also permit canceling out nonstationary noise and making the residual noise more stationary for further treatment by ISS algorithm. Experimental results have indicated that this scheme outperforms many commonly used techniques in the sense of SNR improvement and music effect reduction which is an inevitable byproduct of the spectrum subtraction algorithm.