一、简介电影制片厂的主要生产车间是摄影棚,同期摄影棚则是拍摄影片和录音同时进行的摄影棚。录音时棚内的照明和摄影机都正在工作。照明灯丝抖动和摄影机马达等都是噪声源,这种杂音称为摄影棚的本底杂音量。显然录音时棚内还会有演员、工作人员等其他声响,即使是最低的声音,也往往会高出摄 I. INTRODUCTION The main production workshop of the film studio is a studio, while the studio is the studio where the film and recording are performed at the same time. The lighting and camera in the booth are all working while recording. Lighting filament jitter and camera motors are noise sources. This noise is called the background noise level in the studio. Obviously, during recording, there will be other sounds from actors, staff, etc. Even the lowest sound will often be higher.