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Such branding ceased in about 1976, particularly after nearly all optical sound recording (for release prints) had been converted to Westrex's stereo variable-area system from RCA's and Westrex's mono systems, although there were a few examples of such branding thereafter (mainly Westrex.)
A transparent program disc imprinted with concentric optical sound tracks, used for the Optigan musical organ. Optical sound is a means of storing sound recordings on transparent film. Originally developed for military purposes, the technology first saw widespread use in the 1920s as a sound-on-film format for motion pictures.
Dolby Stereo is a sound format made by Dolby Laboratories.It is a unified brand for two completely different basic systems: the Dolby SVA (stereo variable-area) 1976 system used with optical sound tracks on 35mm film, [1] and Dolby Stereo 70mm noise reduction on 6-channel magnetic soundtracks on 70mm prints.
Best Wireless Surround Sound Systems. Best for Audio Fanatics: Nakamichi Shockwafe Elite. Best Theater Sound: Sony HT-A7000. Best Value: VIZIO M-Series 5.1. Best Upgrade For A Wired System ...
In May 2018, Almedio of Japan, a computer drive manufacturer, [13] presented the Optora ORP-1 optical (laser) turntable at the HIGH END Munich audio show. [14] Few details were provided by the company [ 15 ] because, like the 1984 presentation of the Finial turntable, the Optora was a non-working mockup.
While working at Pacific Northwest National Laboratory, James Russell invented an optical storage system for digital audio and video, patenting the concept in 1970. [4] The earliest patents by Russell, US 3,501,586, and 3,795,902 were filed in 1966, and 1969. respectively. [5] [6] He built prototypes, and the first was operating in 1973.
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