| 田玉静,左红伟,郭芳华.语音消噪应用研究[J].声学技术,2008,(4):557~561 |
| 语音消噪应用研究 |
| Speech de-noising application study |
| 投稿时间：2008-04-01 修订日期：2008-06-26 |
| DOI： |
| 中文关键词: 自适应消噪 LMS算法 小波消噪 |
| 英文关键词: adaptive noise reduction LMS algorithm wavelet de-noising |
| 基金项目: |
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| 中文摘要: |
| 从时域与频域对比研究了低信噪比语音消噪问题,时域采用LMS自适应消噪,频域分析选用小波技术,对两种消噪方法进行了系统全面的分析,对比讨论了各自的优势及不足,对实际信号进行了仿真消噪并与原始语音取样信号相比较,研究表明选用消噪方法对低信噪比语音消噪是明显有效的,LMS自适应消噪及小波消噪具有很强的实际应用价值。 |
| 英文摘要: |
| From the time and the frequency domains a study of de-noising problem for lower signal to noise radio is made: the adaptive noise reduction with LMS algorithm is used in the time domain analysis and the wavelet de-noising is used in the frequency domain study.The two methods are analyzed by contrast,and their advantage and weakness are discussed.A sample signal of speech with noise is simulated,and the de-noised sample signal is compared with the pure speech sample signal.The research result shows a good effect on noise reduction by means of the selected methods. |
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