The Sound Control Room. The Camera which "photographs" the sound is isolated in a sound-proof control room. Through a thick plate glass window the operator can observe the "action" on the set. Earphones enable him to hear the sound and dialogue; and regulate recording. The "sound" camera and the "picture" camera filming the scene are operated by a synchronised electric drive. The illustration is of a scene from the film "The Good Companions;" veiwed from the Sound Control Room. Illustration for one of a set of cigarette cards on the subject of How Films are Made; issued by B Morris in 1934.