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Old 10-02-2013, 12:01 PM   #61
Wendell R. Breland Wendell R. Breland is offline
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3840 x 2160 x 24 bits x 60 frames = 11.944 Gbps. That is for 8 bit, 4:4:4. If 8 bit 4:2:0 is sent over the HDMI cable then the data rate should be (3840 x 2160 x 12 bits x 60 frames)/1e9 = 5.972 Gbps
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Old 10-02-2013, 12:22 PM   #62
Wendell R. Breland Wendell R. Breland is offline
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Some comments by Art Feierman on the Sony VPL-VW600ES Projector here.
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Old 10-02-2013, 11:34 PM   #63
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Quote:
Originally Posted by Wendell R. Breland View Post
Some comments by Art Feierman on the Sony VPL-VW600ES Projector here.
Oh Noooo... I'll have to wait till next year again to see if I can upgrade my projector. Was hoping for a $10,000 list price, $15,000 to steep for me @ the moment, very heartbreaking
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Old 10-03-2013, 05:09 PM   #64
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wait till next year
words of wisdom ^ ....at least for those who aren't trust fund kids.
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Old 10-03-2013, 05:15 PM   #65
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You know, in searching back through ‘the record’ for some past posts for something else, I came across this insightful premonition to the announcement (was ist HDMI?) which would be forthcoming at IFA - http://forum.blu-ray.com/showthread....mi#post8033648

Lucky guess, I guess.
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Old 10-09-2013, 07:13 PM   #66
Wendell R. Breland Wendell R. Breland is offline
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Does anyone know if any audio processors have been announced with HDMI 2.0 capabilities? Standalone HDMI 2.0 switchers?
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Old 10-10-2013, 03:34 AM   #67
Wendell R. Breland Wendell R. Breland is offline
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In reading over the preliminary info on the Emotiva XMC-1 there was a statement in the info that the unit would be ungradable so I joined their forum and asked: Does anyone know if the Emotiva XMC-1 HDMI v1.4. switcher be updated to HDMI v 2.0 in order to handle 4K at 60 fps? I understand this would require a new PWA. Estimated cost?

And the unofficial response about the Emotiva XMC-1 here

Quote:
During Emofest, Emotiva said that the XMC-1 would offer an upgrade board for HDMI 2.0 and it will have 2 HDMI out connections. No date has been released for when to expect the update card nor has a price been mentioned. There was unofficial discussions floating around that it may even ship with the duo HDMI 2.0 card installed.
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Old 10-17-2013, 06:06 PM   #68
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TV broadcasts are still 720p. Going to be a long, long time before we get 4K on cable.
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Old 10-17-2013, 06:15 PM   #69
Wendell R. Breland Wendell R. Breland is offline
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Quote:
Originally Posted by Exile View Post
TV broadcasts are still 720p.
Fox and ABC = 720p, most all others (CBS, CW, NBC, PBS, etc.) are 1080i. For some, it has been this way for many years. We, a PBS affiliate, started in November 1998!!!
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Old 10-24-2013, 01:48 AM   #70
Wendell R. Breland Wendell R. Breland is offline
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Ron Jones has posted HDMI 2.0 and Support for 4K UHD Video here.
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Old 10-24-2013, 02:04 AM   #71
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Chroma subsampling

Colour Spacing: Which is better and why?

8 bit 4:4:4
12 bit 4:2:2
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Old 10-24-2013, 12:35 PM   #72
Wendell R. Breland Wendell R. Breland is offline
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Quote:
Originally Posted by Canada View Post
Chroma subsampling

Colour Spacing: Which is better and why?

8 bit 4:4:4
12 bit 4:2:2
12 bit, 4:2:2 because there are many more steps between black and white + Deep color. Bit depth determines number of steps, X:X:X determines color to luminance sample ratio.

IMO, there is little chance that we will see more than 8 bit, 4:2:0 in the near future for home use. As it stands H.265 (HEVC) will need extensions ratified in order to accommodate anything greater than 8 bit, 4:2:0.

ADD: Also, the more bits you have the greater the S/N ratio. 8 bit ≈ 48 dB, 10 bit ≈ 60 dB, 12 bit ≈ 72 dB. In the real world these numbers will be different but you get the jest of it.

Last edited by Wendell R. Breland; 10-24-2013 at 01:15 PM. Reason: Add info
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Old 10-24-2013, 01:11 PM   #73
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Quote:
Originally Posted by Wendell R. Breland View Post
12 bit, 4:2:2 because there are many more steps between black and white + Deep color. Bit depth determines number of steps, X:X:X determines color to luminance sample ratio.

IMO, there is little chance that we will see more than 8 bit, 4:2:0 in the near future for home use. As it stands H.265 (HEVC) will need extensions ratified in order to accommodate anything greater than 8 bit, 4:2:0.
Plus there is limited benefit of using 4:4:4, especially when using optical discs, as the whole point of Chroma Subsampling is to reduce the amount of storage space required. As for transport bandwidth, as you know and many others, HDMI IS capable of transporting that amount of information (resolution and frame rate dependant of course).

Could you not see 4:2:2 10-bit get the go ahead for 4K Blu-ray or be introduced later on?

Last edited by Tech-UK; 10-24-2013 at 01:21 PM.
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Old 10-24-2013, 01:33 PM   #74
Wendell R. Breland Wendell R. Breland is offline
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Quote:
Originally Posted by Tech-UK View Post
Could you not see 4:2:2 10-bit get the go ahead for 4K Blu-ray or be introduced later on?
Lots of variables, what will ITU-T and MPEG do about the extensions to H.265 and when, would the content providers use greater bit depth if available, will the BDA (or others) commission test to determine the advantages of various bit depths and sample rates, etc.

One can hope we see something > 8 bit, 4:2:0 but I would not be surprised if we do not.
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Old 10-24-2013, 03:46 PM   #75
Geoff D Geoff D is online now
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Same here, I think we'll be lucky to get anything better than 8-bit 4:2:0. Something like 10-bit 4:2:2 would be about as good a result as we can hope for, but I'd be happy with 10-bit 4:2:0 to be honest.

Even if the worst case scenario does arise with my 4K TV, that of the chipset not being able to handle higher bit depth and HFR @ 4K res, I won't lose any sleep because the dominant frame rate for movies will remain at 24fps for many years yet, and at that rate my TV can do 10-bit 4:2:2 4K just fine.

Heck, I doubt that 50/60Hz UHD TV broadcasts will go anywhere near that level of colour quality, so the issue of needing all that extra bandwidth may not arise until such time as someone actually brings out a 60fps 4K Blu-ray movie at 10-bit 4:2:2 with 11.2 lossless sound.
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