Detecting arytenoid cartilage misplacement through acoustic and electroglottographic jitter analysis

Author

Vieira, Maurílio N. ; Maran, Arnold G D ; McInnes, Fergus R. ; Jack, Mervyn A.

Volume

2

fYear

1996

fDate

3-6 Oct 1996

Firstpage

741

Abstract

The paper describes a comparative study of acoustic and electroglottographic (EGG) jitter extracted from simultaneous recordings of 45 dysphonic patients. The estimated jitter values agreed to within ±20% in 67% of the patients, the difference being above +20% and below -20% in 13% and 20% of the cases, respectively. In the group below -20%, EGG jitter increased due to an increase in EGG shimmer and videoendoscopic images revealed abnormal movements of the arytenoid cartilage caused, possibly, by minor selective paralysis of the intrinsic laryngeal muscles. This observation suggests a possible application of signal analysis techniques in support of the diagnosis of laryngeal disorders

Keywords

acoustic analysis; bioelectric potentials; jitter; medical signal processing; patient diagnosis; speech; EGG jitter; EGG shimmer; arytenoid cartilage misplacement; dysphonic patients; electroglottographic jitter analysis; estimated jitter values; intrinsic laryngeal muscles; laryngeal disorder diagnosis; minor selective paralysis; signal analysis techniques; videoendoscopic images; Acoustic measurements; Acoustic signal detection; Acoustic waves; CD recording; Image databases; Jitter; Pathology; Phase estimation; Signal analysis; Video recording;

fLanguage

English

Publisher

ieee

Conference_Titel

Spoken Language, 1996. ICSLP 96. Proceedings., Fourth International Conference on

Conference_Location

Philadelphia, PA

Print_ISBN

0-7803-3555-4

Type

conf

DOI

10.1109/ICSLP.1996.607468

Filename

607468