Transmission and Reproduction of Speech and Music in Auditory Perspective
Harvey Fletcher · Journal of the Society of Motion Picture Engineers · 1934
On January 30, 1934, a demonstration of the transmission and reproduction of speech and music in auditory perspective was held in the auditorium of the Engineering Societies Building, New York, N. Y., to which the members of the Society of Motion Picture Engineers and the Acoustical Society of America were invited. The following are Dr. Fletcher's remarks in explanation of the various features of the demonstration.