| 基于庞加莱截面的语音基音检测 |
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| 引用本文： | 马勇,顾明亮. 基于庞加莱截面的语音基音检测[J]. 电声技术, 2006, 0(8): 39-42 |
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| 作者姓名： | 马勇 顾明亮 |
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| 作者单位： | 徐州师范大学,物理系,江苏,徐州,221116;徐州师范大学,物理系,江苏,徐州,221116 |
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| 摘 要： | 提出了利用庞加莱截面检测语音信号基音的方法,通过延时重构语音信号的相空间,在相空间内计算通过某点的庞加莱截面,根据相轨迹穿过截面上初始点邻域交点进行基音检测;实验表明,基于庞加莱截面的语音信号的方法,描述语音信号的非线性特性具有较高的准确性和时间分辨率。
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| 关 键 词： | 庞加莱截面 重构相空间 基音检测 |
| 文章编号： | 1002-8684(2006)08-0039-04 |
| 收稿时间： | 2006-05-16 |
| 修稿时间： | 2006-05-16 |
Pitch Detection Method Based on Poincare Sections for Speech Signals |
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| MA Yong,GU Ming-liang. Pitch Detection Method Based on Poincare Sections for Speech Signals[J]. Audio Engineering, 2006, 0(8): 39-42 |
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| Authors: | MA Yong GU Ming-liang |
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| Affiliation: | Department of Physics, Xuzhou Normal University, Xuzhou Jiangsu 221116, China |
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| Abstract: | A speech pitch detection method based on Poincare sections is presented. With this method, speech signal segment is embedded in the state space through time delay, and Poincare sections at a chosen point are calculated. Pitch marks are detected at the crossing of trajectories with the plane in certain neighborhood of the initial point. The analysis results show that the method can describe the nonlinear characteristics of speech signals , and also provides a higher accuracy and time resolution in speech pitch detection. |
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| Keywords: | Poincare section reconstructing phase space pitch detection |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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