Speech enhancement by array crosstalk resistant ANC and spectrum subtraction  

作　　者：ZENG Qingning OUYANG Shan 

机构地区：[1]College of Telecommunications Engineering, Xidian University Xi'an 710071 [2]School of Information and Communications, Guilin University of Electronic Technology Guilin 541004

出　　处：《Chinese Journal of Acoustics》2008年第1期85-96,共12页声学学报（英文版）

摘　　要：Microphone array-based speech enhancement has great importance for speech communications and speech recognition. To reduce the aperture of the microphone array and to increase the effect of the speech enhancement will greatly broaden the application areas of the microphone array. An array crosstalk resistant adaptive noise cancellation method is therefore presented. And then an improved spectral subtraction algorithm is further cascaded to obtain better enhancement results. Theoretic analysis and experiments indicate that the proposed scheme needs only a very small microphone array while it simultaneously achieves a higher SNR improvement. Besides, the proposed scheme can be used in many noisy environments and is easy for real-time implementation.Microphone array-based speech enhancement has great importance for speech communications and speech recognition. To reduce the aperture of the microphone array and to increase the effect of the speech enhancement will greatly broaden the application areas of the microphone array. An array crosstalk resistant adaptive noise cancellation method is therefore presented. And then an improved spectral subtraction algorithm is further cascaded to obtain better enhancement results. Theoretic analysis and experiments indicate that the proposed scheme needs only a very small microphone array while it simultaneously achieves a higher SNR improvement. Besides, the proposed scheme can be used in many noisy environments and is easy for real-time implementation.

分 类 号：TN912.35[电子电信—通信与信息系统]