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美国著名的伊斯曼·柯达公司发明一种能录音的照相机,照相者可以在胶片上拍摄画面的旁边同时记录下声音。长达15秒钟的声音是以一系列不同长度的黑短线记录在两幅画面之间的胶片上,这可使照相者在拍摄现场与画面一起录下鸟鸣声、瀑布声或被拍摄人的说话。
The famous Eastman Kodak Company invented a recording camera, the photographer can shoot the film on the film while recording the sound. The sound of up to 15 seconds is recorded as a series of black short lines of different length on the film between the two pictures, which allows the photographer to record the song, the waterfall sound or the photographer together with the picture at the shooting site Talk