3. The speech sound generating system of claim 1 wherein said means continuously responsive to operator input measures motion in two substantially perpendicular directions; transducer means to resolve said motion into components in the two substantially perpendicular directions; frequency tuning means whereby one of each of said components of motion affects the frequency location of one of each of said resonant peaks or formants.
3. The speech sound generating system of claim 1 wherein said means continuously responsive to operator input measures motion in two substantially perpendicular directions; transducer means to resolve said motion into components in the two substantially perpendicular directions; frequency tuning means whereby one of each of said components of motion affects the frequency location of one of each of said resonant peaks or formants. 7. The speech sound generating system of claim 3 wherein said transducer means to resolve said motion into components in the two substantially perpendicular directions is a two-axis potentiometric device.