[1]宗 源,曾毓敏,孙永熙,等.基于EMD的AMDF基音检测改进算法[J].南京师范大学学报(工程技术版),2013,13(01):062.
 Zong Yuan,Zeng Yumin,Sun Yongxi,et al.A Modified AMDF Pitch Detection Algorithm Based on EMD[J].Journal of Nanjing Normal University(Engineering and Technology),2013,13(01):062.
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基于EMD的AMDF基音检测改进算法
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南京师范大学学报(工程技术版)[ISSN:1006-6977/CN:61-1281/TN]

卷:
13卷
期数:
2013年01期
页码:
062
栏目:
出版日期:
2013-03-31

文章信息/Info

Title:
A Modified AMDF Pitch Detection Algorithm Based on EMD
作者:
宗 源曾毓敏孙永熙郑 瑞
南京师范大学物理科学与技术学院,江苏 南京 210023
Author(s):
Zong YuanZeng YuminSun YongxiZheng Rui
School of Physics and Technology,Nanjing Normal University,Nanjing 210023,China
关键词:
基音平均幅度差函数经验模式分解本征模式函数
Keywords:
pitchaverage magnitude difference function(AMDF)empirical mode decomposition(EMD)intrinsic mode functions(IMFs)
分类号:
TN912
摘要:
提出了一种基于经验模式分解的平均幅度差函数基音检测改进算法.该算法首先求取每帧浊音语音的AMDF; 而后利用EMD对AMDF进行分解,得到有限个本征模式函数和残余分量,利用所有的IMF重构组成新的EMDAMDF; 最后利用EMDAMDF检测出该语音帧的基音.仿真结果表明,由于能够有效地去除传统AMDF的均值下降趋势,该算法的性能明显优于传统的AMDF和CAMDF.
Abstract:
This paper presents a modified Average Magnitude Difference Function(AMDF)algorithm based on Empirical Mode Decomposition(EMD)for pitch detection.Firstly,AMDF of the voiced speech frame is computed.Then AMDF is decomposed into a residue component and a finite set of band-limited signals termed as Intrinsic Mode Functions(IMFs)by using EMD.A modified AMDF called EMDAMDF is reconstructed by all IMFs.Finally,the true pitch can be detected from EMDAMDF.The simulated results show that the performance of the proposed algorithm is much better than that of the conventional AMDF and CAMDF as the falling trend is eliminated effectively.

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相似文献/References:

[1]郑瑞,李平,曾毓敏,等.基于DWT的AMDF基音检测改进算法[J].南京师范大学学报(工程技术版),2014,14(02):049.
 Zheng Rui,Li Ping,Zeng Yumin,et al.Modified AMDF Pitch Detection Algorithm Based on DWT[J].Journal of Nanjing Normal University(Engineering and Technology),2014,14(01):049.

备注/Memo

备注/Memo:
收稿日期:2012-12-09.
基金项目:江苏省自然科学基金(BK2010546).
通讯联系人:曾毓敏,博士,教授,研究方向:语音信号处理.E-mail:zengyumin@njnu.edu.cn
更新日期/Last Update: 2013-03-31