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Thread: Intelsat tested 4K TV on Galaxy 13

  1. #13
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    I don't see why that is relevant.
    Probably just me.
    10' Unimesh, with Bullseye II Feed and PLL LNBs, GBox 3000, feeding Omicom S2 & TBS5925.

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  3. #14
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    So if I understand correctly, for the test they had 4 separate 1K streams using 4.2.2? Can any of the 4 streams still be viewed in 1080 resolution if using 4.2.2 capable hardware such as the AzBox?

  4. #15
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    Can any of the 4 streams still be viewed in 1080 resolution if using 4.2.2 capable hardware such as the AzBox?
    If the AzBox can do h.264 4:2:2 and 16apsk, then yes.
    To me, it's not a real test, it's just 4 video channels in a single MUX. I think the actual test is on the receiver's end - an IRD being able to sync those 4 channels into a single Picture.
    10' Unimesh, with Bullseye II Feed and PLL LNBs, GBox 3000, feeding Omicom S2 & TBS5925.

  5. #16
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    It's a test of one way of transmitting 4K video with current tech since 2160p H.265 encoders haven't been produced yet. This is just Intelsat playing around.

    I think new encoders will be produced that encode the full 3840x2160 progressive image using H.265 before any kind of mass distribution is started. These 4x 1080p feeds that must be combined into a single video likely won't be any kind of finalized backhauls or fronthauls and will disappear when we start seeing a serious 4K push. There's really not even a need to use 16APSK even when the H.265 encoders get rolled out - DVB-S2 with a SR of 30000 and and FEC of 5/6 has plenty of bandwidth to deliver a high quality 2160p feed, and even that's probably overkill. Your plain 'ol DVB-S QPSK uplink with ~40 Mbps of bandwidth should be plenty. 4K H.265 @ 40 Mbps is the 4K equivalent of 1080p H.264 @ 20 Mbps.

  6. #17
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    If they can achieve a decent PQ using only 40 megabits, then 4k storage on Blu-Ray would be feasible.

    If they bit starve the 4k too much, on the other hand, they'll lose any added detail that 4k would provide (see most pizza dish and digital cable HD channels).
    Last edited by Tron; 06-29-2013 at 06:30 AM.
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  7. #18
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    Thats it, now i gotta find a tv that can play 4 az boxes at once :P.

    This thread is an interesting read.



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