| 基于子带广义旁瓣相消器的麦克风阵列语音增强* |
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| 引用本文： | 何成林,杜利民,马昕.基于子带广义旁瓣相消器的麦克风阵列语音增强*[J].计算机应用研究,2006,23(4):208-210. |
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| 作者姓名： | 何成林 杜利民 马昕 |
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| 作者单位： | 1. 中国科学院,声学研究所,语音交互研究中心,北京,100080;中国科学院,研究生院,北京,100039
2. 中国科学院,声学研究所,语音交互研究中心,北京,100080 |
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| 摘 要： | 为了加快基于广义旁瓣相消器的麦克风阵列语音增强系统的收敛速度，将其自适应模块的输入信号分解到子带以进行处理，并将多通道维纳滤波器引入广义旁瓣相消器的非自适应支路，以更有效地抑制非相干噪声。实际测试结果表明，相对于基于全带广义旁瓣相消器的麦克风阵列语音增强系统，采用该子带广义旁瓣相消器结构的语音增强系统具有更快的收敛速度和更高的输出信噪比。
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| 关 键 词： | 语音增强 麦克风阵列 子带自适应滤波 广义旁瓣相消器 |
| 文章编号： | 1001-3695(2006)04-0208-03 |
| 收稿时间： | 2005-01-30 |
| 修稿时间： | 2005-04-19 |
Microphone Array Speech Enhancement Based on Subband Generalized Sidelobe Canceller |
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| HE Cheng lin,DU Li min,MA Xin.Microphone Array Speech Enhancement Based on Subband Generalized Sidelobe Canceller[J].Application Research of Computers,2006,23(4):208-210. |
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| Authors: | HE Cheng lin DU Li min MA Xin |
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| Affiliation: | 1. Speech Interactive Technology Research Center, Institute of Acoustics, Chinese Academy of Sciences, Beijing 100080,China;2. School, Chinese Academy of Sciences, Beijing 100039, China |
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| Abstract: | In order to accelerate the convergence of the microphone array speech enhancement system based on Generalized Sidelobe Canceller(GSC),the input signals of the adaptive block are decomposed into theirs subbands to perform the adaptive multi-channel noise cancelling in each subband.And the integration of multi-channel wiener filter into the fixed branch of GSC can suppress the uncorrelated noise efficiently.Experiments indicate that the microphone array speech enhancement system based on this subband GSC has higher converging speed and better output signal-to-noise ratio than its fullband counterpart. |
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| Keywords: | Speech Enhancement Microphone Array Subband Adaptive Filter Generalized Sidelobe Canceller |
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