6. A method of making a chart for speech therapy comprising the steps of: (i) recording on a sound track a sound to be taught; (ii) transferring said sound from said sound track to a large format magnetic tape or optical film; (iii) splitting said sound in predetermined equal time intervals; (iv) analyzing said sound on said magnetic tape or optical film at each said time intervals to determine the variations in sound and determining corresponding variations in graphical representations of positions to reproduce said sound; (v) producing said graphical representations of positions onto time frames of a chart; each frame having a pictorial display of the lips, tongue and jaw positions of said mouth; (vi) alphabetically displaying said sound in said time frames in synchronism with said pictorial displays of said mouth; and (vii) visually displaying said time intervals.
6. A method of making a chart for speech therapy comprising the steps of: (i) recording on a sound track a sound to be taught; (ii) transferring said sound from said sound track to a large format magnetic tape or optical film; (iii) splitting said sound in predetermined equal time intervals; (iv) analyzing said sound on said magnetic tape or optical film at each said time intervals to determine the variations in sound and determining corresponding variations in graphical representations of positions to reproduce said sound; (v) producing said graphical representations of positions onto time frames of a chart; each frame having a pictorial display of the lips, tongue and jaw positions of said mouth; (vi) alphabetically displaying said sound in said time frames in synchronism with said pictorial displays of said mouth; and (vii) visually displaying said time intervals. 8. A method as claimed in claim 6 wherein said step (iv) comprises running said magnetic tape or optical film over or under a magnetic sound head or optical sound head at various speeds, said sound head being connected to an amplifier and speaker to establish precisely the voice modulations in order to give a precise time sequence of said recorded sound thus establishing and verifying the actual breakdown in terms of time.