Who is the engineer and inventor of the noise reduction system known as Dolby NR and a co-inventor of video tape recording while at Ampex?
Ray Dolby Ray Dolby Ray Milton Dolby (; January 18, 1933 – September 12, 2013) was an American engineer and inventor of the noise reduction system known as Dolby NR. He helped develop the video tape recorder while at Ampex and was the founder of Dolby Laboratories. Dolby was born in Portland, Oregon, the son of Esther Eufemia (née Strand) and Earl Milton Dolby, an inventor. He attended Sequoia High School (class of 1951) in Redwood City, California. As a teenager in the decade following World War II, he held part-time and summer jobs at Ampex in Redwood City, working with their
Dolby noise-reduction system Dolby noise-reduction system A Dolby noise-reduction system, or Dolby NR, is one of a series of noise reduction systems developed by Dolby Laboratories for use in analog cassette tape recording. The first was "Dolby A", a professional broadband noise reduction for recording studios in 1965, but the best-known is "Dolby B" (introduced 1968), a sliding band system for the consumer market, which helped make high fidelity practical on cassette tapes which used a relatively noisy tape size and speed. It is common on high fidelity stereo tape players and recorders to the present day. Of the noise reduction systems, "Dolby