The Phenomenon Of Vibrato
Richard B. Miller · 2004
Abstract Professional vocalism is characterized by a vibrato rate that is neither too narrow nor too wide in its pitch excursion. Sometimes singers, in the hope of avoiding oscillatory timbre (the dreaded wobble), are hesitant to let the full extent of pitch variance occur. They need to be reminded that full vibrancy, the source of normal vibrato, cannot result if pitch variation is restricted. Fiberoptic studies reveal that not only the vocal folds oscillate during vibrato; motion takes place in the pharyngeal wall, the epiglottis, and, to some extent, the base of the tongue.