Monitoring Vocal Fold Abduction through Vocal Fold Contact Area A number of commercial devices for measuring the transverse electrical conductance of the thyroid cartilage produce waveforms that can be useful for monitoring movements within the larynx during voice production, especially movements that are closely related to the time-variation of the contact between the vocal folds as they vibrate. This ... Articles
Articles  |   September 1988
Monitoring Vocal Fold Abduction through Vocal Fold Contact Area
 
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  • © 1988, American Speech-Language-Hearing Association
Article Information
Articles   |   September 1988
Monitoring Vocal Fold Abduction through Vocal Fold Contact Area
Journal of Speech, Language, and Hearing Research, September 1988, Vol. 31, 338-351. doi:10.1044/jshr.3103.338
History: Received January 13, 1986 , Accepted October 5, 1987
 
Journal of Speech, Language, and Hearing Research, September 1988, Vol. 31, 338-351. doi:10.1044/jshr.3103.338
History: Received January 13, 1986; Accepted October 5, 1987

A number of commercial devices for measuring the transverse electrical conductance of the thyroid cartilage produce waveforms that can be useful for monitoring movements within the larynx during voice production, especially movements that are closely related to the time-variation of the contact between the vocal folds as they vibrate. This paper compares the various approaches that can be used to apply such a device, usually referred to as an electroglottograph, to the problem of monitoring the time-variation of vocal fold abduction and adduction during voiced speech. One method, in which a measure of relative vocal fold abduction is derived from the duty cycle of the linear-phase high pass filtered electroglottograph waveform, is developed in detail.

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