| 基于小波变换的清浊音分类及基音周期检测算法 |
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| 引用本文： | 胡瑛,陈宁.基于小波变换的清浊音分类及基音周期检测算法[J].电子与信息学报,2008,30(2):353-356. |
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| 作者姓名： | 胡瑛 陈宁 |
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| 作者单位： | 中南大学信息科学与工程学院,长沙,410083 |
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| 摘 要： | 该文提出了一种基于小波变换的鲁棒性基音周期检测方法。检测前在小波域上用Teager能量算子对语音信号进行清浊音判决，对浊音段采用空域相关函数提取基音周期。实验表明，与传统的小波变换算法和自相关法相比，该方法鲁棒性好，具有更高的准确性。
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| 关 键 词： | 基音检测 小波变换 Teager能量算子 空域相关函数 |
| 文章编号： | 1009-5896（2008）02-0353-04 |
| 收稿时间： | 2006-07-18 |
| 修稿时间： | 2006-12-20 |
Voiced/Unvoiced Classification and Pitch Period Detection Algorithm Based on Wavelet Transform |
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| Hu Ying,Chen Ning.Voiced/Unvoiced Classification and Pitch Period Detection Algorithm Based on Wavelet Transform[J].Journal of Electronics & Information Technology,2008,30(2):353-356. |
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| Authors: | Hu Ying Chen Ning |
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| Institution: | College of Information Science and Engineering, Central South University, Changsha 410083, China |
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| Abstract: | This paper proposes a robust pitch period detection method based on wavelet transformation. A Voiced Regions Detection(VRD)algorithm based on wavelet transform and Teager energy operator is proposed firstly. Then an algorithm based on spatial correlation function for estimating pitch frequency only in voiced regions is presented. Experiments show that this algorithm has a better robustness and more precision compared with the classical wavelet-based methods and auto-correlated function (ACF). |
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| Keywords: | Pitch detection Wavelet transform Teager Energy Operator(TEO) Spatial correlation function |
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