A
vocal register is a range of tones in the human voice produced by a particular vibratory pattern of the
vocal folds. These registers include
modal voice (or normal voice),
vocal fry,
falsetto, and the
whistle register. Registers originate in
laryngeal function. They occur because the vocal folds are capable of producing several different vibratory patterns. Each of these vibratory patterns appears within a particular range of
pitches and produces certain characteristic sounds.