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thanks for watching techwiki click the subscribe button then enable

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so 360 degree virtual reality movies

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aren't quite mainstream yet i mean who wants to strap on the headset every time

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there's another disappointing justice league movie but at least 360 degrees

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surround sound has long been the mainstay of not just movie theaters but

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home theaters as well where a typical setup will be a subwoofer or two for

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bass and five or seven speakers surrounding the viewer to help the sound

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well surround the viewer now traditionally the way this is worked is

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that depending on the surround audio encoding scheme used by the publisher a

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device called the receiver would decode and playback discrete audio tracks for

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each speaker that would correspond to the action on the screen assuming a high

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quality mix so the idea is that if you're looking at the scene featuring a conversation the

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voices will probably be coming mostly out of the center channel while the

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satellite speakers behind you focus on let's say ambient background noise this

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one track for one speaker paradigm has been powering surround sound systems for

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a long time and it's worked pretty well but we've increasingly seen a different

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method of surround sound delivery both in theaters and on blu-ray that's

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actually based around encoding sounds as objects instead of channels the

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principle behind dolby atmos and dts x

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but hold on a minute sounds as

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objects okay so it means that instead of each audio track corresponding to only

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one speaker the tracks are encoded with data that indicate some location in

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space instead of a specific channel so let's say you're watching a scene where

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a plane is flying overhead toward you instead of for example the tracks match

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to the front speakers getting quieter and the tracks for the back speakers

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getting louder as the plane passes by the plane's engines will instead be

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encoded as a spot in space above you that moves around in real time now this

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may not sound like too much of a difference but the idea here is that

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atmos and dtsx scale very well

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traditional surround setups had no way of knowing much more than distance from

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your couch about the physical placement of the speakers in your room so results

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can be very inconsistent from setup to setup but because atmos and dtsx allow

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sounds to be coded with location data like above the listener halfway between

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the screen of the chair and against the right hand wall rather than just right front speaker a

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decoder compatible with these formats will then take this positional data and

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the specific speaker configuration into account to produce sound that's more

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accurately reflective of where it's supposed to be in space whether it has

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five speakers propped up on two by fours around your computer to represent this

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data or 50 professional grade loudspeakers in a large cinema and it

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even includes support for sounds above you something traditional surround

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doesn't offer atmos supports up to 118

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objects and dtsx supports an unlimited number of objects and both technologies

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can work with your conventional 5.1 and 7.1 speaker setups with atmos boasting

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support for up to 34 speakers for home theater now that might sound excessive

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and it probably is but more speakers will enhance the sense of space and

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realism you'll get now as for those of you who aren't the type to install

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speakers everywhere you can find an empty spot on your wall or ceiling there

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are a number of upward firing speakers that reflect off of your ceiling to

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simulate a real speaker above you and you can even upgrade your existing power

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speakers just by plopping one designed to fire upward on top of them we checked

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out a sound bar that uses this technique recently over on Linus tech tips and the

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effect was fairly convincing of course like with any new standard not

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everything is atmos or dtsx capable you'll need a compatible receiver though

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the good news is that most receivers support both and some atmos or dtsx

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encoded media fortunately the technology is becoming

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more and more common on blu-rays streaming services and even game

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consoles so maybe at some point we'll feature atmos support right here on

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techwiki and envelop you in the velvety tones of my voice coming at you from 118

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different angles no no takers at all all right

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guys thanks for watching like this video if you liked it dislike it if you didn't

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