Improved Algorithm for Pitch Detection and Harmonic Separation

被引:0
作者
Zhao, Yi [1 ]
Yang, Zhen [1 ]
Lin, Xiaokang [1 ]
机构
[1] Tsinghua Univ, Shenzhen Key Lab Informat Sci & Technol, Grad Sch Shenzhen, Beijing, Peoples R China
来源
MEASUREMENT TECHNOLOGY AND ENGINEERING RESEARCHES IN INDUSTRY, PTS 1-3 | 2013年 / 333-335卷
关键词
Pitch detection; Pitch period; Harmonic separation; Time Variable Filter; SPEECH;
D O I
10.4028/www.scientific.net/AMM.333-335.753
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
In this paper, we have proposed a new algorithm for pitch detection and an idea for harmonic separation based on pitch detection. Firstly, we have introduced the pitch algorithm. It is mainly consisted of five parts: mean value removal, extraction of alternative pitch periods, best pitch transfer path search, accurate pitch period search with time-varying filter and the search of fractional pitch period. Then we have brought in a harmonic separation algorithm based on the pitch detection. The pitch detection algorithm and harmonic separation algorithm proposed in this paper is mutually beneficial. Experiments' results show that the new pitch detection algorithm can achieve higher accuracy. And compared with some other algorithms, this approach owns a better noise immunity The harmonic separation algorithm can separate each harmonic signal accurately.
引用
收藏
页码:753 / 763
页数:11
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