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[Recombu] What is super hi vision? UHD, 4K & 8K TV - Page 6

post #51 of 96
Quote:
Originally Posted by Edge Of PainΒ View Post

Would I even be able to tell the difference between 4K and 8K on a 22" monitor? I can understand why this UHD 8K stuff would be used on massive screens though.

8Kx4K on a 22 inch panel is 400DPI, which at a 2.25 foot viewing distance should be about half the maximum resolution that I could use, which is to say it should be just fine for normal PC use (as long as the OS has good UI scaling).


Quote:
Originally Posted by PolyMorphistΒ View Post

I think by the time 8K becomes 'casual' (seen in every home), there'll be a new technology that makes all of its TV predecessors seem obsolete. Something that goes away with the idea of having a certain number of pixels, refresh rate, response time; a perfect 1:1 representation of the film. The only notable variable would be the screen size. That day, ladies and gentlemen, will be a good day.

Since 8K is probably the last step in TV resolution, I actually fear that manufacturers will go into "household appliance" mode and pick their bullet points for separating "high end" and "low end" machines in the long term (many decades), and that 8K will get split to the "high end", in which case we would never really see cheap 8K panels.

Also, I've read that the grain structure of IMAX film is approximately equivalent to 8K resolution, so it should be enough to perfectly replicate normal film stock.
post #52 of 96
Quote:
Originally Posted by EniGma1987Β View Post

To me, the storage IO system is part of the evolution of the drives connected to them.
Also we do get near double the write speed going 64 -> 128 because double the channels, but the controller itself only has something around 10 channels max. We cant simply throw a ton more chips in ( even if we could fit twice as many chips in the space of a drive) and expect to keep doubling write speed endlessly. Part of this evolution of the SSD I was talking about is that the controller needs to get better to allow more channels to get the speeds, the connection it uses needs to get faster to support the speeds, and the nand chips or whatever is used needs to get smaller so that we can fit the proper number of chips in the drive.

True it takes several things to make consumer SSD capable of handling 8K video. The tech already exists in more specialized form like EPIC's camera equipment. It will get down to the consumer level in due time.

Its also worth remembering that end users wont need to handle raw footage. The bigger the file size and the more pixels there are, the more potential for compression there is and just look at how massive the difference there is between H.262 and H.264. By moving the newer format users could use half the bit rate or less and retain identical or better image quality.

The next generation format is already out and its called HEVC ( aka H.265) (Formal publication: November 25, 2013) and it again cuts the needed bit rate in half compared to H.264. Video decoder chips for this standard are also already being produced and some of thous chips have support for Super Hi-Vision 8K and some go as high as 7680x4320 60 fps.

By the time 8k goes mainstream we will probably be using an even newer format that yet again reduces the needed bandwidth and storage space. I don't think computers will have much issues with 8k by the time its relevant. What wont be able to cope is broadcast/satellite TV. Thous technologies will have an extremely hard time getting up to native 4k and I'm kinda doubting that they will ever get even that far. Even today you wont get clean 1080p. You get either 720p or over compressed 1080i. Hell where I live regular broadcasts still come in SD, highly compressed SD at that puke.gif

I think we are closing in fast at the point where TV is becoming obsolete. People will either move netflix style streaming or at least IPTV.
Edited by Bit_reaper - 1/12/14 at 2:59pm
    
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post #53 of 96
Quote:
Originally Posted by EniGma1987Β View Post

To me, the storage IO system is part of the evolution of the drives connected to them.
Also we do get near double the write speed going 64 -> 128 because double the channels, but the controller itself only has something around 10 channels max. We cant simply throw a ton more chips in ( even if we could fit twice as many chips in the space of a drive) and expect to keep doubling write speed endlessly. Part of this evolution of the SSD I was talking about is that the controller needs to get better to allow more channels to get the speeds, the connection it uses needs to get faster to support the speeds, and the nand chips or whatever is used needs to get smaller so that we can fit the proper number of chips in the drive.

Right, which is why a lot of PCIe SSDs are using multiple controllers. More channels means better parallel processing means more faster speeds. However, even a saturated controller is SATA III bottlenecked. Look at the negligible differences between a 480GB and 960GB M500. A 360GB M500 should in theory be just as fast as either of those (~370-380MB/s sequential writes) with 80 000 IOPS if my extrapolations are correct, and a 960GB with no controller or SATA bottleneck should run at over 1.3GB/s and well over 150 000 IOPS.
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post #54 of 96
That 8k TV must use 1 jiggawat of power
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post #55 of 96
Quote:
Originally Posted by .SupΒ View Post

That 8k TV must use 1 jiggawat of power

Why? My Samsung UN55F9000 uses less power than my old 37" LG 1080p.
post #56 of 96
Quote:
Originally Posted by Bit_reaperΒ View Post

The next generation format is already out and its called HEVC ( aka H.265) (Formal publication: November 25, 2013) and it again cuts the needed bit rate in half compared to H.264. Video decoder chips for this standard are also already being produced and some of thous chips have support for Super Hi-Vision 8K and some go as high as 7680x4320 60 fps.

By the time 8k goes mainstream we will probably be using an even newer format that yet again reduces the needed bandwidth and storage space..
Can't wait until H.264 looks like a .bmp sequence in terms of bandwidth efficiency biggrin.gif
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post #57 of 96
Quote:
Originally Posted by RAFFYΒ View Post

Why? My Samsung UN55F9000 uses less power than my old 37" LG 1080p.

He was trying to be funny by referencing back to the future , but failed miserably
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post #58 of 96
I can't ever say I'll bring myself to use 22 different speakers and 2 subs. Seven I can see; even ten, but 22? Jesus.
 
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post #59 of 96
Quote:
Originally Posted by pezΒ View Post

I can't ever say I'll bring myself to use 22 different speakers and 2 subs. Seven I can see; even ten, but 22? Jesus.

I suppose it depends on what they mean by 22 speakers. If they are clustered together in to bigger units it would be far less of an hassle.

Traditional tower speakers can have anything form 2 to 7 or more individual drivers. Normally thees would all run form one source and be divided up using internal high-pass/low-pass filters. Now if the tower was instead built to accept say 3 or 4 inputs then you would only need 5 of them to get the magical 20 speakers + 2 subs


Edited by Bit_reaper - 1/12/14 at 10:56pm
    
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post #60 of 96
Quote:
Originally Posted by pezΒ View Post

I can't ever say I'll bring myself to use 22 different speakers and 2 subs. Seven I can see; even ten, but 22? Jesus.

If I had a house with a devoted theater room I'd be down to use 22 speakers. I guess at that point you probably need to sound proof the room and design it acoustically too.
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