Cinematography — Signal-to-noise ratio of 8 mm Type S, 16 mm and 35 mm variable-area photographic sound records — Method of measurement
电影摄影与摄影;8mm S型、16mm和35mm可变区域摄影声音记录的信噪比——测量方法
This International Standard specifies a preferred method and an alternative method for measuring the signal-to-noise ratio of 8 mm type S, 16 mm and 35 mm variable-area photographic Sound records.