what is dolby?
Answer:
The first answer is (almost) right --- it's no longer exclusively a lossy technology -- but misses the scope of "Dolby" and how it relates to competing technologies.
The first link below is an excellent overview of the history of Dolby Laboratories .... founded in England in 1965 by an American physicist (Ray Dolby) ... and originators of what revolutionized film -- a practical 35mm stereo optical film print (Dolby Stereo) that allowed surround sound at the movies.
There are now a wide range of Dolby technologies -- all aimed at improving entertainment experiences such as movies and games and used both professionally and at home.
Dolby Labs are symbolized by the double D logo (A stylized capital D followed by a matching reversed D) followed by DOLBY and with each specific standards given a short text name under the Dolby symbol (e.g. Stereo, Digital, TrueHD.
The second link is to a site that provides an overview of Dolby and how it works to contibute to our enjoyment of sound at the movies.
While Doby is the most prevelant there are two "competing" technologies (DTS or Digital Theatre Sound and SDDS or Sony Dynamic Digital Sound) which incidently, because of the way they work, can all be used on a single movie print. On DVD movies you will sometimes have a choice of sound track -- dolby or DTS.
THX is sometimes confused with Dolby or DTS, but actually is a set of standards for the the playback equipment and facility in which a soundtrack is to be played, and is therefore complementary rather than competitive.
For an excellent independent history see Dolby Digital, DTS and DVD: A history (Third link below) Dolby Digital is the marketing name for a series of lossy audio compression technologies by Dolby Laboratories. a Filter made by "Dolby Labs" You can get all the history of dolby at this link :
http://www.dolby.com/about/who_we_are/hi... It's an old format that you need to get to know because all surround receiverers are using nowadays.
H ap py home theatering!~
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