标准摘要
[中文适用范围]： 本国际标准规定了测量 8mm S 型、16mm 和 35mm 可变面积摄影声音记录的信噪比的首选方法和替代方法。 [外文原描述]： 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.
英文名称Cinematography — Signal-to-noise ratio of 8 mm Type S, 16 mm and 35 mm variable-area photographic sound records — Method of measurement