Audio and Video Pioneer Ray Dolby Passed Away
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Advent100A with Dolby B-type Noise Reduction

1965: Dolby introduces A-type® noise reduction for the professional market.
1968: Dolby introduces Dolby B-type® noise reduction for consumer products.
1970: Advent, Fisher, and Harman Kardon begin offering cassette tape recorders with Dolby B-type noise reduction.




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Audio and Video Pioneer Ray Dolby Passed Away