Photographic Recording and Photoelectric Reproduction of Sound
The principles underlying the production of reproducible sound records by means of photography are discussed and methods of investigation of the adaptability of luminous discharges in gases and in mercury vapor are described. Diagrams are given of methods to modulate various forms of luminous discharges by means of sound controlled audio- and radio-frequency currents. Description and photographs are included illustrating the apparatus developed by the author for talking motion pictures and for testing of photographic sound records.
- Print ISSN
- 0096-6460
- Published
- 1923-05
- Content type
- Original Research
- DOI
- 10.5594/J11632
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