An Automatic Electronic Speech Teaching Responder.

A concept for an apparatus which visually displays and responds to the first and second formant of vowel sounds is developed. The machine is intended for use by deaf and speech handicapped children in learning to produce voiced sounds. System design and principles applied to realize a physical prototype of this concept are presented. The complete electronic and mechanical design plus fabrication of the automatic electronic speech training responder is described in detail. Schematic diagrams of all electronic circuitry employed and photographs of the prototype equipment are included. Author