| 语音信号的小波变换处理方法 |
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| 引用本文： | 余伶俐. 语音信号的小波变换处理方法[J]. 吉林工学院学报, 2005, 26(3): 229-232 |
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| 作者姓名： | 余伶俐 |
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| 作者单位： | 中南大学信息科学与工程学院,湖南长沙410083 |
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| 摘 要： | 利用小波变换时-频分析的特点,针对语音信号特征,选取适当的小波母函数进行增强和压缩编码处理.通过Matlab仿真分析,得到增强后的信号图和压缩后的压缩比参数、能量保留参数、零系数比例系数.结果表明,基于小波变换的语音信号处理表现出良好的特性.
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| 关 键 词： | 语音信号处理 小波变换 增强 压缩编码 |
| 文章编号： | 1006-2939（2005）03-0229-04 |
| 收稿时间： | 2005-03-15 |
| 修稿时间： | 2005-03-15 |
A wavelet transformation method for speech signals |
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| YU Ling-li. A wavelet transformation method for speech signals[J]. Journal of Jilin Institute of Technology, 2005, 26(3): 229-232 |
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| Authors: | YU Ling-li |
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| Affiliation: | School of Information and Engineering, Central South University, Changsha 410083, China |
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| Abstract: | By the time-frequency analytic feature of wavelet transformation, aiming at the characteristics of the speech signals, the appropriate functions are selected to strengthen and to code the processing with compression. Simulated by Matlab, the strengthened signals, the compression ratio parameter, the energy reservation parameter and the zero coefficient parameter were obtained. The results show that the speech signal processing based on wavelet transformation exhibits good characteristics. |
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| Keywords: | speech signal processing wavelet transformation strengthening condensation encode. |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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