Vibratory patterns of the vocal folds during pulse register phonation
Robert L. Whitehead, Dale Evan Metz, Brenda H. Whitehead · The Journal of the Acoustical Society of America · 1983
In a previous paper [R. L. Whitehead et al., J. Acoust. Soc. Am. Suppl. 1 73, S47 (1983)] we reported that during a single vowel sample of pulse register phonation, each vibratory cycle of the vocal folds consisted of either a double or triple pulsing motion prior to achieving complete glottal closure. The current paper presents data on two additional vowel samples obtained on the same female subject phonating in pulse register. Glottal area-time functions were calculated, using high speed laryngeal films, for 35 consecutive cycles from one film and for 33 consecutive cycles from the other. The results from the first film indicated that each vibratory cycle of the vocal folds consisted of a single opening/closing gesture followed by a lengthy closed period. The results from the second film indicated that each vibratory cycle consisted of a double opening/closing vocal fold pattern followed by the lengthly period of closure. From our data, it appears that one of the physiological descriptors of pulse phonation is that of multiple, as well as single, vibratory patterns of the vocal folds. [Work supported by U. S. Department of Education.]