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Sony introduces ultra-HD '4K' TV

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Sony introduces ultra-HD '4K' TV

Old 08-30-12, 05:27 PM
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Re: Sony introduces ultra-HD '4K' TV

Originally Posted by Geofferson
Sweet...how many total releases will Army of Darkness be up to, 174?
Originally Posted by Solid Snake PAC
I dunno...ask xage.
I'm sure h'es currently fapping to the thought of buying another set of discs he'll never watch.
Old 08-30-12, 07:07 PM
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Re: Sony introduces ultra-HD '4K' TV

According to the following chart, at my screen size and viewing distance, I can resolve better than 8k resolution, so maybe I should start saving up.

Old 08-30-12, 07:32 PM
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Re: Sony introduces ultra-HD '4K' TV

huh...8k does seems like the choice to make.
Old 08-31-12, 08:06 AM
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Re: Sony introduces ultra-HD '4K' TV

I'll need Lasik to appreciate anything better than 1080p. Besides, I think HD audio is at least 50% of the experience....can't get any better than lossless.
Old 08-31-12, 12:21 PM
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Re: Sony introduces ultra-HD '4K' TV

Originally Posted by zyzzle
As admirable as this is, it is doomed to failure, if only for the reason that existing bandwidth will not support a 4k resolution with any reasonable quality. It would require about 200 mbits / sec to sustain that resolution with good quality.
The new h.265 codec is supposed to cut those bandwidth needs at least in half or more.
Old 08-31-12, 12:39 PM
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Re: Sony introduces ultra-HD '4K' TV

Originally Posted by philly1981
I can see it now star wars the complete saga coming soon to Blu-ray 4k
Episodes 2 and 3 probably won't unless they're upconverted; they were shot in 1080p.
Old 08-31-12, 02:32 PM
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Re: Sony introduces ultra-HD '4K' TV

Well, I don't trust the .h265 codec. Sooner or later, something has to give in compression. How is it possible to reduce bandwidth requirements by half without there being some major problems added? .h264 is already very, very efficient!
Old 08-31-12, 02:45 PM
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Re: Sony introduces ultra-HD '4K' TV

That chart looks really off compared to ones I saw in years past. You can be 20 feet away from a 30-inch screen and really tell the difference between 720p and 1080p?

I remember the numbers being 8 feet away from an 80-inch screen to resolve anything higher than 1080p (or to fully resolve 4k, I'm not sure).
Old 08-31-12, 03:35 PM
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Re: Sony introduces ultra-HD '4K' TV

So is 4K the highest resolution you can possibly go?

Strange since besides Blu-ray discs and Directv Cinema you can't get a lot of programs in 1080p yet and now they want to do 4K.

Just makes me wonder will 55" TVs be considered small in the future where any average joe can buy it while 84" or maybe 100" are considered the best you can get?
Old 08-31-12, 04:28 PM
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Re: Sony introduces ultra-HD '4K' TV

That viewing distance chart changed. It used to be this:

Old 08-31-12, 05:50 PM
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Re: Sony introduces ultra-HD '4K' TV

Originally Posted by MTRodaba2468
Episodes 2 and 3 probably won't unless they're upconverted; they were shot in 1080p.
Most films shot in digital are shot in 1080p unless you're shooting with a RED model or something similar.
Old 09-01-12, 03:15 AM
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Re: Sony introduces ultra-HD '4K' TV

Still wonder how much the demand will be there when people stream almost everything and are happy with poor picture quality.

These new TVs will have to be free of flashlighting, clouding, line bleeding, and burn in.
Old 09-01-12, 12:13 PM
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Re: Sony introduces ultra-HD '4K' TV

I still think the success of the current HDTVs have less to do with the fact that they are Hi-Def and more to do with their asthetic quality ie. slim, sleek look, light-weight, hang on your wall like a picture frame etc.

Blu-ray has failed to attact large sales numbers even though the quality, as of today, is unrivaled. Having mass-produced 4K physical media content is highly unlikely.

Unless some serious bandwidth breakout happens, 4K will only attract those that have 35mm projectors in their basements.
Old 09-01-12, 01:02 PM
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Re: Sony introduces ultra-HD '4K' TV

Originally Posted by zyzzle
Well, I don't trust the .h265 codec. Sooner or later, something has to give in compression. How is it possible to reduce bandwidth requirements by half without there being some major problems added? .h264 is already very, very efficient!
People said that about MPEG-2 as well. Technology marches on.
Old 09-05-12, 09:13 PM
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Re: Sony introduces ultra-HD '4K' TV

The exact resolution of the set is 3,840 by 2,160 pixels. It's known as "4K" because it has nearly 4,000 pixels on the horizontal edge. That compares with 1,920 by 1,080 pixels in "1080p" sets.
Ummm... I thought it was called 4k because it's literally 4 times as many pixels as 1080p.
If it is, as he says, called 4k because it's near 4000px long, then 1080p would be called 2k, which is it is not, because it is incorrect.
Not very confidence inspiring when the COO gets something like this wrong.
Old 09-05-12, 09:30 PM
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Re: Sony introduces ultra-HD '4K' TV

Originally Posted by fmian
Ummm... I thought it was called 4k because it's literally 4 times as many pixels as 1080p.
If it is, as he says, called 4k because it's near 4000px long, then 1080p would be called 2k, which is it is not, because it is incorrect.
Not very confidence inspiring when the COO gets something like this wrong.
It's a little different for cinema vs. TV: https://en.wikipedia.org/wiki/4K_resolution
Old 09-05-12, 09:46 PM
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Re: Sony introduces ultra-HD '4K' TV

Originally Posted by Solid Snake PAC
I dunno...ask xage.
What is xage?
Old 09-05-12, 09:52 PM
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Re: Sony introduces ultra-HD '4K' TV

Originally Posted by LosingMyMind
What is xage?
That's a complex question.
Old 09-05-12, 09:59 PM
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Re: Sony introduces ultra-HD '4K' TV

Originally Posted by trespoochies
That's a complex question.
Like The Matrix?
Old 09-05-12, 10:01 PM
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Re: Sony introduces ultra-HD '4K' TV

nooo...it's kind of like whether or not you let a stranger cum in your asshole while you're at the Steamworks bathhouse while you're also questioning what you prefer in that same timeframe. In other words...more complicated than The Matrix.
Old 09-06-12, 01:33 AM
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Re: Sony introduces ultra-HD '4K' TV

Originally Posted by Josh Z
People said that about MPEG-2 as well. Technology marches on.
Indeed. H.265 (aka HEVC) will be the next standard. I haven't seen anything else that comes close to the efficiency of the tests coming out of the draft HEVC standard. Compression is always a tradeoff between quality, filesize, and computational power required.

When H.264 was ratified in 2003, Intel was shipping Pentium 4 processors. Now we have multi-core, hyper-threaded, multi-processor machines that are an order of magnitude more powerful. A lot more processing power can be thrown at the compression algorithm's complexity to increase quality and decrease filesize.
Old 09-06-12, 03:15 PM
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Re: Sony introduces ultra-HD '4K' TV

Alright, so h.265 gets ratified, suppose it will require 4 or 8 modern CPU cores to compress 'efficiently'. There is another trade-off that nobody seems to be thinking about. Heat. And incresed power consumption; sure the power efficency per CPU core may beat the P4s, but most of those were only single-core. And, further down the line, component failure. How to possibly surmount the heat problem? Lots of noise (fans). Noboday in Home Theatre likes Noise unless it's coming from the movie itself!
Old 09-08-12, 12:30 PM
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Re: Sony introduces ultra-HD '4K' TV

For devices like, um what should we call it, Super-Duper Blu-ray players, there will be ASIC's to handle the H.265 decoding, so it won't fall to a general purpose microprocessor to do the decoding. That's how it works in today's Blu-ray players too. You don't see P4's or Core 2 Duo's inside of them.
Old 09-08-12, 01:53 PM
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Re: Sony introduces ultra-HD '4K' TV

That is a good point. Yes, most BD standalones only consume 25-30 watts, whereas most modern CPUs alone consume anywhere from 95 to 160 watts of power.
Old 09-11-12, 08:56 AM
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Re: Sony introduces ultra-HD '4K' TV

Originally Posted by Match
That viewing distance chart changed. It used to be this:

There's a substantial difference between those charts. Any idea where the "new" chart is from?

Under the "old" chart, at 10 feet away from my 61" TV, I'm in "Benefit of 1080p starts to become noticeable". With the new chart, that's considered "8K enough". I've been using the first chart as justification for upgrading DVDs to Blu-ray, effectively future-proofing because at that distance it would be impossible to see any improvement with any higher resolution. Maybe that's been a bad assumption?

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