| 一种改进的小波语音增强算法 |
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| 引用本文： | 王耀琦,王小鹏.一种改进的小波语音增强算法[J].微计算机信息,2011(5). |
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| 作者姓名： | 王耀琦 王小鹏 |
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| 作者单位： | 兰州交通大学电子与信息工程学院; |
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| 摘 要： | 在提出了基于TEO的清音、浊音和噪音区分的基础上,采用不同的小波阈值处理方法在多尺度上进行阈值处理,并对阈值函数进行了改进。实验表明,该算法不但能够有效的抑制噪声,还能减少对清音部分的损失,既提高了信噪比,又改善了语音信号的清晰度和舒适度,是一种有效的语音增强算法。
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| 关 键 词： | 语音增强 小波变换 Teager能量算子 阈值函数 |
An Improved Speech Enhancement Algorithm Based on Wavelet Transform |
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| W, Yao-qi WANG Xiao-peng.An Improved Speech Enhancement Algorithm Based on Wavelet Transform[J].Control & Automation,2011(5). |
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| Authors: | W Yao-qi WANG Xiao-peng |
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| Affiliation: | WAND Yao-qi WANG Xiao-peng(School of Electronic and Information Engineering,Lanzhou Jiaotong University,lanzhou730070,China) |
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| Abstract: | Proposed an algorithm of distinction unvoiced,voiced and noise based on TEO,dealt wavelet transform using different threshold on multiscale,and improved threshold function.Experimental results showed that the algorithm not only suppressed noise effectively but also reduced the loss of the unvoiced,not only enhanced SNR,but also improved voice clarity and comfort.So it was an effective speech enhancement algorithm. |
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| Keywords: | Speech Enhancement Wavelet Transform Teager Energy Operator(TEO) Threshold Function |
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