Dolby As Fast As Possible
Techquickie
·Techquickie
·2016-05-06
·
812 words · ~4 min read
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part of the reason why we're willing to pay out the freaking nose for movie
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tickets is that Primo sound you get at the theater and indeed a huge part of
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marketing these days for Cinema chains is pushing their audio technology that
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promises some sort of transcendental experience for your ears but years ago
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Dolby Laboratories you may recognize some little indication on games movies
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or even someone's receiver under their TV started trying to bring a theater
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likee experience to the home they like
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other competing companies such as DTS provide compression Technologies for
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audio streams so that they'll fit onto a disc much like how One might compress a
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video file to make it suitable for the net I'm looking at you h.264 dolby's
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technology was born many years back with Dolby stereo if you're a budding audio
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Enthusiast in 1975 you might remember seeing Dolby stereo being tossed around
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what was special about it was that it took took your conventional stereo sound
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and created a 4channel surround experience in the theater through some
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mathematical trickery with the sound encoding but it wasn't until 1982 that
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the home was first introduced to Dolby technology with Dolby Surround another
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analog technology that added a mono surround channel to the usual front left
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and right this was improved with Dolby Pro logic which added a center channel
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and used a more advanced algorithm to not only extract the extra Channel but
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to also improve the movement and discreetness between them prologic still
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exists today in a new and improved form with the ability to mix stereo or
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surround to 9.1 channels as technology
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progressed it became easier to record multi- channel sound natively and so
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Dolby Digital debuted in 1992 featuring six discrete channels of
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audio in the ubiquitous 5.1 setup five
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speakers one subwoofer since then we've seen incremental updates to the
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Technologies with improvements to the number of channels as well as maximum
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bit rate and Sample rate in the case of Dolby true HD a lossless audio codec so
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what does the future look like well in order to blow your mind the new Dolby
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Atmos now supports up to 128 audio objects that are independent
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of a channel assignment why is this better well imagine a helicopter flying
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over you instead of a conventional system vaguely telling your ears where
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the chopper is flying with Dolby Atmos sounds can be created independently and
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mapped to a specific location so you'll be able to pick out exactly where it is
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Atmos also scales the specific speaker structure of the theater and does this
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in real time so in theory you should hear a spatially accurate effect no
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matter where you sit put this all together and voila you can almost feel
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like you're there and if you don't want to pay nine freak freaking dollars for a
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bucket of popcorn Dolby has now expanded this technology into the home it does
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require a compatible AV receiver which supports the extra channels needed to
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make this possible the more speakers you have by the way the better but Atmos
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will work with at least six so you won't
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