| 基于二进小波变换的基音检测算法 |
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| 引用本文： | 董婧,赵晓晖,应娜.基于二进小波变换的基音检测算法[J].吉林大学学报(工学版),2006,36(6):978-0982. |
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| 作者姓名： | 董婧 赵晓晖 应娜 |
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| 作者单位： | 1. 吉林大学,通信工程学院,长春,130012
2. 杭州电子科技大学,通信工程学院,杭州,310018 |
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| 基金项目： | 吉林大学校科研和教改项目 |
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| 摘 要： | 为了克服目前诸多基音周期检测算法精度低、计算复杂度高、鲁棒性差的缺点,研究了一种采用二进小波变换模极大值进行基音周期检测的算法。仿真结果表明,该算法在强背景噪声下仍可以准确提取基音周期,并且具有复杂度低、分辨率高和实时性好的特点。
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| 关 键 词： | 信息处理技术 基音检测 二进小波变换 模极大值 |
| 文章编号： | 1671-5497（2006）06-0978-05 |
| 收稿时间： | 2005-12-10 |
| 修稿时间： | 2005年12月10 |
Pitch detection algorithm based on dyadic wavelet transforms |
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| Dong Jing,Zhao Xiao-hui,Ying Na.Pitch detection algorithm based on dyadic wavelet transforms[J].Journal of Jilin University:Eng and Technol Ed,2006,36(6):978-0982. |
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| Authors: | Dong Jing Zhao Xiao-hui Ying Na |
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| Affiliation: | 1. College of Communication Engineering, Jilin University, Changchun 130012, China; 2. College of Communication Engineering, Hangzhou Dianzi University, Itangzhou 310018, China |
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| Abstract: | In order to overcome the disadvantages of low accuracy, high complexity, and lack of robustness in many actual pitch detection algorithms, a new algorithm for pitch detection on the basis of local modulus maxima of dyadic wavelet transform was presented. Simulation results indicate that this algorithm possesses better pitch detection precision for the speech signals under strong background noise, low calculation complexity, high resolution, and capability for real time implementation. |
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| Keywords: | information processing pitch detection dyadic wavelet transform local modulus maxima |
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