Sound motion pictures : from the laboratory to their presentation (1929)

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THE STUDIO 219 "sound props" may be phonograph records or sound film records. Others may be mechanical devices which produce a sound that registers better than the natural sound itself! A pistol shot, for example, sounds like something else on the screen. Therefore an electrical device has been created to produce a report that really sounds like a pistol shot when recorded on the screen! VIII. Conclusion Sound may be recorded at the time of the action. This sound may be special music, or effects intended to enhance the illusion of realism. A new technique is being developed in the expression of the new art, resulting from the combination of sound and pictures. In the reproduction of musical accompaniment for a picture the sound recording may be done either at the time that scenes are being photographed or added later. Both methods are feasible, and each has its advantages. The method by which music is recorded after the picture has been completed seems to be preferable. The highest quality of reproduction is important, and it is frequently possible to provide a better type of music if the recording of musical accompaniment is done separately and apart from taking the actual scenes of a reel. The fidelity of reproduction can now be said to have reached a fairly satisfactory stage. Speech has been recorded which is scarcely distinguishable from the original product of the voice, and this holds equally true for instrumental music. It has been found feasible also to transmit music and voice currents over large distances over telephone lines and to record these with satisfactory results. The great added interest brought to the motion picture because of sound will encourage further inventive genius