Audio and Picture Synchronization on Motion-Picture Film Relative to the Universal Leader for Magnetic and Photographic Records
电影胶片上的音频和图像同步相对于磁性和摄影记录的通用领导者
It is the purpose of this practice to standardize the photographic and magnetic synchronizing signals and their position relative to the SMPTE Universal Leader, as specified in ANSI/SMPTE 55-1992.