ISO 2939:2015规定了35 mm电影发行版上图像和摄影声音记录的位置、尺寸和位置，这些电影发行版已根据ISO 2907指定用于光学投影，或根据ISO 1223通过电视传输。 它还规定了声音相对于相应图像帧的相对位移，并通过对ISO 17266的规范性引用，规定了多通道模拟和数字摄影声音和控制记录的位置。

ISO 2939:2015 specifies the positions, dimensions, and location of image and photographic sound records on 35 mm motion-picture release prints, which have been assigned for optical projection based on ISO 2907 or transmitted by television based on ISO 1223. It also specifies the relative displacement of sound with respect to the corresponding picture image frame and, through normative reference to ISO 17266, the placements of the multichannel analogue and digital photographic sound and control records.