Title :
Detecting arytenoid cartilage misplacement through acoustic and electroglottographic jitter analysis
Author :
Vieira, Maurílio N. ; Maran, Arnold G D ; McInnes, Fergus R. ; Jack, Mervyn A.
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;
Conference_Titel :
Spoken Language, 1996. ICSLP 96. Proceedings., Fourth International Conference on
Conference_Location :
Philadelphia, PA
Print_ISBN :
0-7803-3555-4
DOI :
10.1109/ICSLP.1996.607468
