本指南规定了在模拟和数字磁性和摄影材料上，与电影后期制作音频录制有关的工作室内和工作室间操作的音频录制参考级别。

This guideline specifies the audio recording reference level for intra- and inter-studio operations concerned with motion-picture post-production audio recording on both sprocketed and nonsprocketed analog and digital magnetic and photographic materials.