| 基于频谱减法的语音去噪算法研究 |
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| 引用本文： | 邓利娜,黄晓革. 基于频谱减法的语音去噪算法研究[J]. 电子设计工程, 2011, 19(8): 113-115 |
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| 作者姓名： | 邓利娜 黄晓革 |
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| 作者单位： | 电子科技大学电子工程学院,四川成都,610054 |
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| 摘 要： | 语音增强技术是音频信号处理中的重要部分,频谱减法是目前在语音增强技术中最常用的方法之一。针对传统频谱减法会产生音乐噪声并无法消除音乐噪声的不足之处及高频噪声干扰比较严重的情况下频谱减法效果差的情况,采用了在频谱减法之后进行LMS滤波以降低音乐噪声对语音质量的影响和低通滤波以滤除脉冲干扰。根据仿真结果表明,改进扩展频谱减法能够有效降低音乐噪声和尖锐的高频兹兹声,从而提高信噪比,达到语音增强的目的。
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| 关 键 词： | 语音增强 频谱减法 低通滤波 LMS滤波 |
Research of speech denoising algorithm based on spectrum subtraction |
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| DENG Li-na,HUANG Xiao-ge. Research of speech denoising algorithm based on spectrum subtraction[J]. Electronic Design Engineering, 2011, 19(8): 113-115 |
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| Authors: | DENG Li-na HUANG Xiao-ge |
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| Affiliation: | (School of Electronics Engineering,University of Electronic Science and Technology of China,Chengdu 610054,China) |
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| Abstract: | The speech enhancement technique is an important part of audio signal processing.Presently,spectral subtraction algorithm is very popular in this field.However,spectral subtraction algorithm usually adds"music noise" to the signal.Aiming at reducing annoying musical noise,in this paper,spectral subtraction algorithm combined with LMS filter and low pass filter is proposed,Simulation on computer shows that the new method is more effective in improving SNR and elimination musical noise and frequency noise. |
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| Keywords: | speech enhancement spectral subtraction method low pass filtering LMS filtering |
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