Report on Recent Activities of the Research Council Committee on Standardization of Theater Sound Projection Equipment Characteristics

The early history of the standardization of electrical characteristics and the preparation of the first version of the Research Council Theater Sound Test Reel is detailed. Performance specifications and methods for using the various types of Standard Multi- Frequency Test Reels, Warble Frequency Reels, Buzz Track, Scanning Illumination Test Track, Standard 7000 and Standard 9000-Cycle Film, and Balancing Films are enumerated. — Current activities of the Committee on Standardization of Theater Sound Projection Equipment Characteristics, including current investigations toward specifying a Standard Electrical Characteristic for the Simplex 4-Star Sound Systems, are outlined. General recommendations for adjustment of theater sound equipment, in the light of the Committee's experience, are recounted, and in conclusion, the cooperation of the theater service and equipment groups in commenting upon the Committee's Theater Standardization activities and submitting suggestions for further consideration is requested.

Print ISSN

0097-5834

Published

1939-06

Content type

Original Research

DOI

10.5594/J11988