Dolby Stereo

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Dolby Stereo

A digital audio encoding system from Dolby that was first used in movie theaters in the mid-1970s. It recorded four channels of audio and provided a breakthrough re-introduction of the optical soundtrack over magnetic tracks on 35mm film. Many noise reduction and equalization techniques were also used on 70mm magnetic-recorded film. Dolby Stereo was later renamed the Dolby analog format. See Dolby Surround and Dolby Digital.

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Dolby Surround

References in periodicals archive ?

Apart from being a nuisance to fellow patrons, the use of mobile phones affected the cinema's Dolby Stereo amplifier system.

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We have made various improvements in the last couple of years, including pullman seats and Dolby stereo sound," he said.

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Its unique design allows for powerful speakers to deliver truly remarkable sound, in rich Dolby stereo.

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These specifications were originally designed to improve the sound of Dolby Stereo systems in theaters.

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IN comes home cinema - complete with huge screens, back projection and Dolby stereo.