| 基于谱减法和经验模式分解的语音增强 |
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| 引用本文： | 陈蕴谷.基于谱减法和经验模式分解的语音增强[J].安庆师范学院学报(自然科学版),2010,16(1):19-21. |
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| 作者姓名： | 陈蕴谷 |
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| 作者单位： | 贵州大学,计算机科学与信息学院,贵州,贵阳,550025 |
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| 摘 要： | 本文提出了一种基于谱减法和经验模式分解的语音增强算法。在低信噪比的情况下用谱减法可以去除语音信号中的大部分背景噪声,再对已处理过的信号进行经验模式分解,对前几个IMF进行阈值处理可以进一步增强语音。实验表明:本算法去噪效果优于传统方法。
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| 关 键 词： | 语音增强 经验模式分解(EMD) 谱减法 |
Speech Enhancement Baesd on Spectral Subtraction and EMD |
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| CHEN Yun-gu.Speech Enhancement Baesd on Spectral Subtraction and EMD[J].Journal of Anqing Teachers College(Natural Science Edition),2010,16(1):19-21. |
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| Authors: | CHEN Yun-gu |
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| Abstract: | A speech enhancement algorithm based on spectral subtraction and EMD are proposed in this paper.After the most of noise removed by using spectral subtraction method in low SNR,decomposed the signal by EMD,the speech could be got further enhanced with the first IMFs thresholded.Experimental results show that the proposed algorithm outperforms general algorithms with respect to denosing performance. |
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| Keywords: | speech enhancement empirical mode decomposition(EMD) spectral subtraction method |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
