A Novel Pitch Period Detection Algorithm Bases on HHT with Application to Normal and Pathological Voice

Author

Hu Weiping ; Wang Xiuxin ; Liang Yaling ; Du Minghui

Author_Institution

Dept. of Electron. & Commun. Eng., South China Univ. of Technol., Guangzhou

fYear

2006

Firstpage

4541

Lastpage

4544

Abstract

A modified pitch period detection (MPPD) algorithm is proposed in this paper. It is based on the redefinition of the instantaneous energy density level of Hilbert-Huang transform, called as frequency weighted energy density FIE(t). Two examples are employed to illuminate the physical meaning of this new definition. MPPD are used in detection experiments with 78 normal and 70 abnormal vowel /a:/ voices, the experimental results show that MPPD provides more robust performance and makes better results in normal voice pitch detection

Keywords

medical signal detection; medical signal processing; speech processing; HHT; Hilbert-Huang transform; frequency weighted energy density; instantaneous energy density level; modified pitch period detection algorithm; normal voice; pathological voice; Detection algorithms; Educational institutions; Fluctuations; Frequency; Pathology; Physics; Power engineering and energy; Signal analysis; Speech analysis; Speech processing;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 2005. IEEE-EMBS 2005. 27th Annual International Conference of the

Conference_Location

Shanghai

Print_ISBN

0-7803-8741-4

Type

conf

DOI

10.1109/IEMBS.2005.1615479

Filename

1615479