Title :
Estimation of Harmonic and Noise Components from Pathological Voice using Iterative Method
Author :
Jo, Cheolwoo ; Li, Tao ; Wang, Jianglin
Author_Institution :
Sch. of Mechatronics, Changwon Nat. Univ.
Abstract :
The aim of this paper is to analyze and discriminate the pathological voice by separating signal into periodic and aperiodic parts. Separation was performed recursively from the residual signal of voice signal. Based on initial estimation of aperiodic part of spectrum, aperiodic part is decided from the extrapolation method. Periodic part is decided by subtracting aperiodic part from the original spectrum. A parameter HNR is derived based on the separation. Parameter value statistics are compared with those of Jitter and Shimmer for normal, benign and malignant cases
Keywords :
cancer; extrapolation; harmonics; iterative methods; medical signal processing; noise; source separation; speech; speech processing; HNR; aperiodic parts; benign case; extrapolation method; harmonic component; iterative method; malignant case; noise component; parameter value statistics; pathological voice; periodic signal; recursive; signal separation; Biomedical engineering; Cancer; Electronic switching systems; Frequency domain analysis; Harmonic analysis; Iterative methods; Jitter; Pathology; Speech analysis; Time domain analysis;
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.2005.1615514
