High Quality Content by WIKIPEDIA articles! Falsetto (Italian diminutive of falso, "false") is the vocal register occupying the frequency range just above the modal voice register and overlapping with it by approximately one octave. It is produced by the vibration of the ligamentous edges of the vocal folds, in whole or in part. Commonly cited in the context of singing, falsetto, a characteristic of phonation by both men and women, is also on speech pathology.