Cinematography. 35 mm film. Sound-Specification for reproduction characteristics of the A-chain frequency response for 35 mm photographic sound
电影摄影 35毫米胶片 声音35mm摄影声音A链频率响应的再现特性规范
A-chain frequency response characteristic in motion-picture control rooms and indoor theatres.Cross References:BS 5550:Subsection 5.4.2BS 5550:Subsection 7.4.1