| 混响环境下的宽带波束形成语音增强方法 |
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| 引用本文： | 王冬霞,郑家超,范真维,周城旭.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):136-139,151. |
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| 作者姓名： | 王冬霞 郑家超 范真维 周城旭 |
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| 作者单位： | 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 |
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| 基金项目： | 国家自然科学基金，辽宁省杰出青年成长支持计划项目，辽宁省教育厅基金 |
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| 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。
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| 关 键 词： | 麦克风阵列 语音增强 小波滤波器组 宽带波束形成 |
Broadband beamforming for speech enhancement in reverberation environment |
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| WANG Dongxia
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ZHENG Jiachao
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FAN Zhenwei
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ZHOU Chengxu.Broadband beamforming for speech enhancement in reverberation environment[J].Computer Engineering and Applications,2012,48(34):136-139,151. |
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| Authors: | WANG Dongxia ZHENG Jiachao FAN Zhenwei ZHOU Chengxu |
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| Affiliation: | 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 |
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| 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 bv svnthesizing the enhanced subband speech signals. Simulation results demonstrate its effect. |
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| Keywords: | microphone array speech enhancement wavelet filterbanks broadband beamforming |
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