 In 1935, with Caryl Haskins, he founded Haskins Laboratories, a nonprofit research laboratory that is located in New Haven, Connecticut, and studies speech and language.His primary interest was in speech synthesis and perception, which led him to invent the Pattern playback, an early electromechanical device for synthesizing speech.It became a forerunner of contemporary computer-based speech synthesis programs and was used by many scientists at Haskins to discover the critical cues for speech synthesis and recognition.