标准摘要
[中文适用范围]： 本国际标准规定了电影配音剧院（混合室）、放映室和房间体积超过125 m³（4,414 ft³）的室内剧院中B链的测量方法和电声频率响应。其目的是协助标准化电影院声音的监听和再现，使得在各个安装地点和安装地点内的各个位置都能具有恒定的 perceived loudness 和频率响应。本国际标准不包括从传声器到输入源音频选择器的声音系统的部分。 [外文原描述]： ISO 2969:2015 specifies the measurement methods and characteristic electroacoustic frequency response of the B-chain of motion-picture dubbing theatres (mixing rooms), screening rooms, and indoor theatres whose room volume exceeds 125 m 3 (4,414 ft 3 ). It is intended to assist in standardization of monitoring and reproduction of motion-picture sound in such rooms. The goal is to have constant perceived loudness and frequency response from installation to installation, and from position-to-position within an installation. This International Standard does not cover that part of the motion-picture sound system extending from the transducer to the input source audio selector.
英文名称Cinematography — B-chain electro-acoustic reponse of motion-picture control rooms and indoor theatres — Specifications and measurements