本国际标准规定了电影控制室和室内影院中摄影声音再现的A链电频率响应特性。它与ISO 2969一起，旨在帮助电影配音剧场、评论室和室内剧场的录音、监控和再现特性的标准化。本国际标准涵盖了从换能器到主音量控制器输入端子的电影声音系统部分。

This International Standard specifies the A-chain electrical frequency response characteristic for photographic Sound reproduction in motion-picture control rooms and indoor theatres. lt is intended, in conjunction with ISO 2969, to assist in the standardization of recording monitor and reproduction characteristics of motion-picture Sound dubbing theatres, review rooms and indoor theatres. This International Standard covers that part of the motion-picture Sound System from the transducer to the input terminals of the main fader.