Title :
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
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;
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
DOI :
10.1109/IEMBS.2005.1615479
