Broadband beamforming for speech enhancement in reverberation environment

Computer Engineering and Applications ›› 2012, Vol. 48 ›› Issue (34): 136-139.

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Broadband beamforming for speech enhancement in reverberation environment

WANG Dongxia1, ZHENG Jiachao1, FAN Zhenwei2, ZHOU Chengxu1

1.School of Electronic & Information Engineering, Liaoning University of Technology, Jinzhou, Liaoning 121001, China
2.Department of Electrical Engineering, Jilin Technology College of Electronic Information, Jilin 132021, China

Online:2012-12-01 Published:2012-11-30

混响环境下的宽带波束形成语音增强方法

王冬霞1，郑家超1，范真维2，周城旭1

1.辽宁工业大学电子与信息工程学院，辽宁锦州 121001
2.吉林电子信息职业技术学院电气系，吉林省吉林市 132021

Abstract

Abstract: A broadband beamforming method based on wavelet filterbanks and adaptive beamforming is proposed for speech enhancement in this paper. Using the wavelet analysis filterbanks, noisy speech signals are transformed into wavelet domain with wavelet coefficients as output. Then adaptive beamforming in wavelet domain is done. The enhanced fullband speech signals are reconstructed by synthesizing the enhanced subband speech signals. Simulation results demonstrate its effect.

Key words: microphone array, speech enhancement, wavelet filterbanks, broadband beamforming

摘要： 结合小波滤波器组理论和自适应波束形成技术，提出了一种基于宽带波束形成的麦克风阵列语音增强方法。该方法利用小波分析滤波器组将含噪语音信号变换到小波域；进行小波域阵列自适应波束形成；通过小波综合滤波器组重构增强后的语音信号。计算机仿真实验验证了该方法的有效性。

关键词: 麦克风阵列, 语音增强, 小波滤波器组, 宽带波束形成

WANG Dongxia1, ZHENG Jiachao1, FAN Zhenwei2, ZHOU Chengxu1. Broadband beamforming for speech enhancement in reverberation environment[J]. Computer Engineering and Applications, 2012, 48(34): 136-139.

王冬霞1，郑家超1，范真维2，周城旭1. 混响环境下的宽带波束形成语音增强方法[J]. 计算机工程与应用, 2012, 48(34): 136-139.

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Broadband beamforming for speech enhancement in reverberation environment

混响环境下的宽带波束形成语音增强方法

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