How films are made: Recording Noises (colour litho)

Recording Noises. Various incidental noises used in a talking picture, such as the screaming of gulls or roar of the ocean, are recorded and "kept in stock" to be made use of as required. In the picture operators are recording the noise of a train. The microphone on the "boom" is recording the whistle of the engine and the general roar of the train. The inverted microphone is recording the clatter of the wheels. In the background is the recording van, supplying the electric current, and containing the delicate apparatus which literally photographs the sound. Illustration for one of a set of cigarette cards on the subject of How Films are Made, issued by B Morris in 1934.