| 多媒体教室室内非相干噪声衰减研究 |
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| 引用本文： | 陈善继.多媒体教室室内非相干噪声衰减研究[J].电声技术,2010,34(12):75-77. |
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| 作者姓名： | 陈善继 |
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| 作者单位： | 青海民族大学物理与电子信息工程学院,青海西宁,810007 |
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| 基金项目： | 国家民委2008年科研项目(08QH07) |
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| 摘 要： | 对室内声场来讲,传感器在感应到讲话者信号的同时,也会感应到室内的噪声信息,甚至扬声器重放的声音信号。因此,对听众来讲,就会使得演讲者的声音信号无论是清晰度还是可理解度都会受到或多或少的影响。给出一种基于传感器阵列的多媒体教室室内非相干噪声抑制方案,通过仿真,可以看出对噪声抑制的有效性,使室内声场更加稳定。
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| 关 键 词： | 传声器阵列 信号处理 滤波 噪声抑制 |
Study of Non-coherent Noise Attenuation in Multimedia Room |
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| CHEN Shanji.Study of Non-coherent Noise Attenuation in Multimedia Room[J].Audio Engineering,2010,34(12):75-77. |
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| Authors: | CHEN Shanji |
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| Institution: | CHEN Shanji(Department of Electronic and Information Science and Technology,Qinghai University for Nationalities,Xining 810007,China) |
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| Abstract: | To room acoustic environment,the microphones catch not only the signal of talker,but also the noise,even the replayed signal.So there are effects on definition and intelligibility to the signal of talker more or less.A way of noise reduction is given based on microphone array.Simulation result shows that noise reduction is effective and makes room acoustic environment more steady. |
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| Keywords: | microphone array signal processing filter noise reduction |
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