Vocal Vowels

VOCAL VOWELS includes plastic models of five different shapes that mimic the shape of the human vocal tract making the sounds of ee, eh, oh, oo and ah. A bellows pushes air by the reed of a duck call, making a quacking sound. Like the vocal cords, the reed produces a complex sound made up of many different frequencies. When the reed is placed at the end of one of the plastic models, only some of the frequencies resonate within the model's cavity, producing the distinctive sound.