Projects of the Committee on Standardization of Theater Sound Projection Equipment Characteristics of the Academy of Motion Picture Arts and Sciences
John K. Hilliard · Journal of the Society of Motion Picture Engineers · 1938
This report presents the revised specifications of the Research Council's standard electrical characteristics for two-way reproducing systems in theaters, as well as other Research Council standards relating to power reference level, cross-over frequency, output requirements for theaters, and standardization of harmonic content. — In addition, data on the Research Council standard frequency test-film and theater test-film are presented, as well as specifications for the proposed standard nomenclature for filters.