Applications of Laser Technology to Photographic Optical Sound Recording
Metadata
- Publisher
- SMPTE — White Plains, NY, USA
- Doc Type
- Journal Article
- Content Type
- Original Research
- Abbreviated Title
- SMPTE J
- Volume
- 101, No. 1, pp. 14–18
- Abstract
- Photographic optical sound recording has been used for composite sound tracks on cinema prints since the introduction of sound on motion-picture film. It has evolved through variable-area to variable-density modulation, using various forms of modulators, and back to variable-area, in worldwide use today. The majority of modulators currently in use are light valves and galvanometers, both types capable of stereophonic variable-area recording. Various other modulator schemes have been tried, but few were ever commercially put into service. Today a successful new optical recorder has been developed, using a laser beam that is capable of exposing a sharper image with a more even field and an extended frequency response. This article describes this new technology, which can be used for recording standard stereo variable-area sound tracks, making optical test films, and future recording of digital audio sound negatives.
- Publication Date
- 1992-01-01
- DOI
10.5594/J02357- ISSN
- Print:
0036-1682 - Link
- https://doi.org/10.5594/J02357
- Author(s)
- Michael StrongNacwestrex, Inc., Burbank, CA 91506.Jack LeahyNacwestrex, Inc., Burbank, CA 91506.
- Copyright
- © 1992 Society of Motion Picture and Television Engineers, Inc.
Bibliographic Reference(s)
- Recording of Variable-Area Soundtracks Using a Laser Light-Modulating Device [Active]
- A High-Quality Optical Sound Recording System Using a Scanned Laser Beam [Active]
- Characteristics of the Photophone Light-Modulating System [Active]
- The Principles of the Light Valve [Active]
- The Production of Wide-Range, Low-Distortion Optical Soundtracks Utilizing the Dolby Noise Reduction System [Active]
- A Comparison of Variable-Density and Variable-Width Systems [Active]
- Sixteen-Millimeter Sound Pictures in Color [Active]
- The ABC of Photographic Sound Recording [Active]
- Mechanical and Optical Equipment for the Stereophonic Sound-Film System [Active]
- Fantasound [Active]
- Pioneering in the Talking Picture [Active]
- The Mitchell Recording Camera Equipped Interchangeably for Variable Area and Variable Density Sound Recording [Active]
- Kerr Cell Method of Recording Sound [Active]
- Push-Pull Recording with the Light-Valve [Active]
- Demonstration of Stereophonic Recording with Motion Pictures [Active]
- Committee Reports: Report of the Journal Committee October, 1930 [Active]
- The RCA Recording System and Its Adaptation to Various Types of Sound-Track [Active]
- 21. Dickson L. D. , “Optical Considerations for an Acousto-Optic Deflector,” Applied Optics , 11 : 2196 , Oct. 1972 . EXTERNAL
- 3. Ruhmer E. , “The Photographophone,” Scientific American , July 29, 1901 . EXTERNAL
- 7. Frayne J. G. Wolfe H. , Elements of Sound Recording , John Wiley & Sons : N.Y. , p. 328 . EXTERNAL
- 8. Wente E. C. , “Light Valve,” U.S. Patent 1686355, 1922 . EXTERNAL
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Michael Strong and Jack Leahy; Applications of Laser Technology to Photographic Optical Sound Recording, SMPTE Journal ( Volume: 101, Issue: 1, January 1992); SMPTE, 1992. Available at https://doi.org/10.5594/J02357
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Michael Strong and Jack Leahy; Applications of Laser Technology to Photographic Optical Sound Recording, SMPTE Journal ( Volume: 101, Issue: 1, January 1992); SMPTE, 1992. Available at https://doi.org/10.5594/J02357
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Michael Strong and Jack Leahy; Applications of Laser Technology to Photographic Optical Sound Recording, SMPTE Journal ( Volume: 101, Issue: 1, January 1992); SMPTE, 1992. Available at https://doi.org/10.5594/J02357
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<span class="citation">Michael Strong and Jack Leahy; <cite>Applications of Laser Technology to Photographic Optical Sound Recording</cite>, SMPTE Journal ( Volume: 101, Issue: 1, January 1992); SMPTE, 1992. Available at <a href="https://doi.org/10.5594/J02357" target="_blank" rel="noopener">https://doi.org/10.5594/J02357</a></span>
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Michael Strong and Jack Leahy; Applications of Laser Technology to Photographic Optical Sound Recording, SMPTE Journal ( Volume: 101, Issue: 1, January 1992); SMPTE, 1992
doi: 10.5594/J02357
url: https://doi.org/10.5594/J02357
doi: 10.5594/J02357
url: https://doi.org/10.5594/J02357
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<li> Michael Strong and Jack Leahy; <cite id="bib-10-5594-j02357">Applications of Laser Technology to Photographic Optical Sound Recording</cite>, SMPTE Journal ( Volume: 101, Issue: 1, January 1992); SMPTE, 1992 <span class="doi">10.5594/J02357</span> </li>