4. The system of claim 1 , wherein the first color is red, the second color is orange, the third color is yellow, the fourth color is green, the fifth color is blue and the sixth color is purple.
1. An identity verification system, comprising: a sound input device; a processing device operatively coupled to said sound input device; and a display operatively coupled to said processing device; wherein: said processing device executes computer readable code to create a first visual representation of frequency relationships within a spoken word sensed by the sound input device for output on the display; wherein: said first visual representation is evaluated to determine the identity of the person speaking said spoken word; and wherein: said first visual representation is generated according to a method comprising the steps of: (a) placing twelve labels in a pattern of a circle, said twelve labels corresponding to twelve respective frequencies, such that moving clockwise or counter-clockwise between adjacent ones of said labels represents a first frequency interval; (b) identifying an occurrence of a first frequency within the spoken word; (c) identifying an occurrence of a second frequency within the spoken word; (d) identifying a first label corresponding to the first frequency; (e) identifying a second label corresponding to the second frequency; (f) creating a first line connecting the first label and the second label; and wherein: (1) the first line is a first color if the first frequency and the second frequency are separated by the first frequency interval; (2) the first line is a second color if the first frequency and the second frequency are separated by a first multiple of the first frequency interval; (3) the first line is a third color if the first frequency and the second frequency are separated by a second multiple of the first frequency interval; (4) the first line is a fourth color if the first frequency and the second frequency are separated by a third multiple of the first frequency interval; (5) the first line is a fifth color if the first frequency and the second frequency are separated by a fourth multiple of the first frequency interval; and (6) the first line is a sixth color if the first frequency and the second frequency are separated by a fifth multiple of the first frequency interval.