同期声是指拍摄画面的同时,在同一磁带上同步记录的与画面有关的现场的人声或自然环境中的声响。同期声经过细致的后期处理,能够最大限度地缩短屏幕与观众的心理距离,增强节目表现力和感染力。同期声在纪录片中的重要性,现在已被广大纪录片创作者所认识。许多纪录品作品中大段的现场再现,没有大段的同期声录制几乎是做不到的,在一些优秀的作品中,同期声起到类似交响乐中主旋律的作用,如纪录片《英与白》中,反复出现的电视画面 Simultaneous sound refers to the sound of the scene or the sound of the natural environment that is recorded on the same tape and recorded at the same time as the recording screen. Simultaneous sound through meticulous post-processing, to minimize the psychological distance between the screen and the audience, enhance program performance and appeal. The importance of the sound of the same period in the documentary has now been recognized by the majority of documentary creators. In many works of record, it is almost impossible to perform large-scale on-site sound recording without large-scale simultaneous sound recordings. In some excellent works, the symphony plays the main melody in the same period, such as the documentary “English and White” In the recurring TV picture