| 基于谱减的双元指向传声器阵列语音增强 |
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| 引用本文： | 廖逢钗,卢昌荆.基于谱减的双元指向传声器阵列语音增强[J].南平师专学报,2011,30(2):73-76. |
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| 作者姓名： | 廖逢钗 卢昌荆 |
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| 作者单位： | 三明学院数学与计算机科学系,福建三明,365004 |
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| 基金项目： | 福建省自然科学基金(2009J01296) |
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| 摘 要： | 设计了一种结构简单的用于语音增强的双元指向性传声器阵列,利用阵列中不同方位阵元对目标信号和干扰信号的增益不同的特点,有效估计噪声信号的功率谱,再利用传统谱减算法的思想,实现语音增强。实验结果表明提出的算法是有效的,与经典的谱减算法相比具有更佳的语音增强效果。
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| 关 键 词： | 谱减 传声器阵列 语音增强 傅立叶变换 衰减系数 |
Spectral Subtraction Based on Dual Directivity Microphone Array Speech Enhancement |
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| LIAO Fengchai LU Changjing.Spectral Subtraction Based on Dual Directivity Microphone Array Speech Enhancement[J].Journal of Nanping Teachers College,2011,30(2):73-76. |
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| Authors: | LIAO Fengchai LU Changjing |
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| Institution: | LIAO Fengchai LU Changjing(Mathematics and Computer Department,Sanming University,Sanning,Fujian 365004) |
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| Abstract: | A simple dual directivity microphone array used to speech enhancement is designed,noise power spectral is estmated availably using the characteristic that difference azimuth element in array has difference gain to object signal and interfere signal.Any more,achieves speech enhancement using the idea of classical Spectral Subtraction.Experiment result indicates that proposal algorithm is effective,and it's speech enhancement effect is better than classical Spectral Subtraction algorithm. |
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| Keywords: | Spectral Subtraction microphone array speech enhancement Fourier transform attenuation coefficient |
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