Digital Optical Sound on 35mm Motion-Picture Film
Under the aegis of the Technical Research and Development Division of the National Film Board of Canada (NFB), a consortium of Canadian companies, led by Barringer Research Ltd., Toronto, conducted a program during 1988–1989 to produce prototypes capable of recording and playing back a digital sound track on 35mm motion-picture color print stock. The resulting system has sufficient data density for five independent full-bandwidth sound channels with a dynamic range of more than 90 dB. Full backward compatibility with existing analog tracks is maintained. Implementation can be achieved by use of modification kits for industry-standard equipment.
- Print ISSN
- 0036-1682
- Published
- 1990-11
- Content type
- Original Research
- DOI
- 10.5594/J02567
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