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| 基于小波变换的语音信号去噪 | |
| 引用本文： | 徐永华,孙炯宁,沈鹏.基于小波变换的语音信号去噪[J].金陵科技学院学报,2003,19(4):59-61. |
| 作者姓名： | 徐永华 孙炯宁 沈鹏 |
| 作者单位： | 1. 金陵科技学院计算机与信息工程系,江苏,南京,210038 2. 南京气象学院,江苏,南京,210044 3. 江苏广播电视总台,江苏,南京,210008 |
| 摘 要： | 利用小波的时频域局部化特性,解决语音信号的去噪问题。文中给出了语音信号的小波去噪算法,并基于不同的阈值选取,提出了采用适合于语音信号的浮动阈值,实验表明去噪效果好,提高了语音信号的识别率。 |
| 关 键 词： | 小波 语音信号 去噪 阈值选取 |
| 文章编号： | 1008-1895(2003)04-0059-03 |
| 修稿时间： | 2003年9月3日 |
De-noising of the Speech signal Based on the Wavelet Transform |
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| XU Yong-hua,SUN Jiong-ning.De-noising of the Speech signal Based on the Wavelet Transform[J].Journal of Jinling Institute of Technology,2003,19(4):59-61. | |
| Authors: | XU Yong-hua SUN Jiong-ning |
| Abstract: | De-noising of the speech signal is resolved by the wavelet with local well in the time and frequency domain. The paper introduces the wavelet de-noising algorithm, and the fluctuation threshold based on the various threshold choosing is presented to suit the speech signal. Experimental results show that de-noising capability is very well and the distinguishing rate of speech is improved greatly. |
| Keywords: | wavelet speech signal de - noising threshold choosing |
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