Acoustic Control of Recording for Talking Motion Pictures
Joseph P. Maxfield · Journal of the Society of Motion Picture Engineers · 1930
The purpose of this paper is to describe the fundamental basis of sound recording as applied to motion pictures and to give certain results which have been obtained by the use of these principles in the actual production of pictures for release. The quantitative methods of applying the material have not been completely worked out and the work described is therefore largely of a qualitative nature. Some indication has been obtained, however, regarding the approximate magnitude of the more important factors.