CES VIDEO: What is HDMI 2.1? Do you need it? What about HDMI Cables?

Discussion in 'General TV Discussions Forum' started by Phil Hinton, Jan 11, 2019 at 5:50 AM.


    1. Phil Hinton

      Phil Hinton
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    2. lgans316

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      From a streaming provider standpoint, this is no of use if they are going to continue with the current streaming rates.
       
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    3. graybell

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      Really needs to work on that elevator pitch. I appreciate that this is a discussion at a tech event, but struggling to hear the headline here. Perhaps they should try completing in ten words or less: “The average consumer needs HDMI 2.1 because …”
       
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    4. Mister_Tad

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      Loving the little dance he does around the cables question at the end.
       
    5. steviedr

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      Great video.

      So if the manufacturers can enable/ provide headroom for the likes of VRR, ALLM & eArc on 2.0b but don’t and you want it, I guess you need to wait for 2.1 as it will have you covered.

      If they can enable them, why don’t they or is there only enough headroom for some and not all?

      It sounds like (as I don’t need 8K and HFR 4K 120) 2.0b with additional features would do me, but if the manufacturers only include some of the additional features there will be a few of us continuing to sit on the fence until 2020 when they will include at least one 2.1 port or am I still not understanding this :)
       
    6. dante01

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      HDMI 21????

      Surely you mean 2.1? And yes, I did call you Surely :)
       
    7. zubeir

      zubeir
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      Woah, I'm way behind on 1.4
      The guys were probably tired when posting from Las Vegas, or it was the alcohol talking :)
       
    8. Jules

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      You had a tough job getting an industry insider to answer the HDMI picture quality question straight, so the little dance around that one was to be expected!

      So basically:

      1) There are only 3 official cable specifications.. High Speed, Premium, and Ultra, but some cheap cables can be suspect!
      2) HDMI 2.1 equipment and cables guarantee access to all 'features', but the equipment manufacturer has to support them.
      3) Where you need those exclusive 2.1 features, you need an 'Ultra' rated cable.
      4) Dolby Vision doesn't need 2.1, but other dynamic metadata standards do.

      Couldn't be any clearer could it?
      How is Joe Bloggs in Currys supposed to get his or her head around this?
       
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    9. dante01

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      The only thing I noted was his insinuation that all cables are certified by them. This is factually incorrect and there's no requirement to have a cable certified. He also neglected to mention that those who do submit cables for certification are charged quite a substantial amount for doing so, hence why many manufacturers don't bother with the certification and why you are so hard pushed to source cables that are indeed officially certified by HDMI org.

      Is it any wonder that so many people get confused by HDMI if the people resposible for it cannot get their story straight. Did this guy expect no one to actually ever ask him about HDMI version 2.1 while he was attending CES? He genuinely looked amazed when asked LOL

      He even avoided giving a straight answer when asked if HDMI cables can improve the video quality. THose in the know who aren't actually working for HDMI .org know the answer, but he cannot give it in case he offends a manufacturer who may be telling lies about the product HDMI.org are being paid to certify?
       
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      Last edited: Jan 11, 2019 at 2:38 PM
    10. Danbeaman1991

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      I'm torn at the moment about pressing the button on a C8 or waiting for the C9.. he didn't really help me work out either way to be honest.
       
    11. blackmesa8

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      Can you explain more about that please. Does that mean other HDR types may need 2.1 such as HDR10+ or HLG? Or does it mean future ones? or am I wrong here completely?
       
    12. Soundizer

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      Overall a useful interview.

      Do today’s available [48gbps] Certified HDMI cables support the 2.1 features?
       
    13. dante01

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      HDMI version 2.1 should offer greater assurance of HDR10+ support, but Director of Panasonic Media Alliance Office, Paul Williams, claims that HDMI 2.ob can support HDR10+.

      What we learned about HDR10+ - FlatpanelsHD

      Support for HLG HDR is already part of the HDMI version 2.0b specs.
       
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      Last edited: Jan 11, 2019 at 4:14 PM
    14. dante01

      dante01
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      There are currently no 48G certified cables. The cables hanging behind him will be the first to be certified ULTRA.

      HDMI :: Manufacturer :: HDMI 1.4 :: Finding the Right Cable
       
      Last edited: Jan 11, 2019 at 4:21 PM
    15. golden phoenix

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      plus im assuming everything in your av chain has to be hdmi 2.1 if you want to get the full benefits and that av equipment (or manufacturer has to actually implement the element such as VRR modes, 48gps streaming in the equipment itself. simply having an hdmi 2.1 cable piece of equipment is not enough within itself?
       
    16. dante01

      dante01
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      The cable just allows the devices to convey the associated data and doesn't enable the devices with the associated abilities. You'd still be restricted to the bandwidth of the HDMI implementations within those devices despite using a cable able to carry or convey higher bandwidth streams than those devices can output and or accept.
       
    17. Toon Army

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      Are Currys bothered about the customer understanding, so long as the punter buys an overpriced cable that out performs their actual needs?
       
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    18. Spike_UK

      Spike_UK
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      Meanwhile at audioquest HQ.......

      [​IMG]
       
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    19. Jules

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      You'll need the real experts for the definitive answer here, but my understanding is as follows:

      -HDR10 does not use metadata, so no need for 2.1. Most of us can already access HDR10 with existing standards.
      -HDR10+ does use metadata, and is essentially an alternative to Dolby Vision.... without the licence fees and 'end to end' standardisation.
       
    20. Soundizer

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      My eyes are not 2.1 Certified.
       
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    21. dante01

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      HDR10 does use metadata. The difference is that it is static HDR while Dolby Vision and HDR10+ are dynamic in nature.

      It uses the SMPTE standard ST2084:2014
      snapshot001.jpg

      http://files.spectracal.com/Documents/White Papers/HDR_Demystified.pdf
       
      Last edited: Jan 11, 2019 at 5:48 PM
    22. dante01

      dante01
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      You'll only need a HIGH SPEED or PREMIUM certified cable to hold your trousers up with then :lesson:
       
    23. addyeddy

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      What is HDMI 2.1? Another sales gimmick that will improve things a tiny amount for a tiny amount of people. Yet the 'must haves' will be on it like a rash convincing themselves it's essential.
       
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    24. lgans316

      lgans316
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      HDMI 2.1
      You are not behind. You are in the real world..
       
    25. Stinger69

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      I'm looking forward to a new batch of What HiFi reviews, praising a cable's confident colours and excellent motion handling. Gotta love those crazy guys! (Or not)
       
    26. Rizvan

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      I’ve got a couple of 48G HDMI cables, they aren’t certified but that’s all I could get my hands on at the moment.
       
    27. blackmesa8

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      From the link "Premium High Speed HDMI Cable and Premium High Speed HDMI Cable with Ethernet"

      I get all that with just Amazon basics high speed with ethernet cables....

      So the only important ones are
      High Speed HDMI Cable for 1080p and deep colour
      High Speed HDMI Cable with Ethernet for HDMI 2.0B
      The Ultra High Speed HDMI Cable For 8K and HDMI 2.1 etc
       
    28. Garioch

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      Sorry for my lack of understanding but I am still confused about HDMI 2.1's support for dynamic metadata. If previous revisions of HDMI can support DV / HDR10+, then what additional format of dynamic metadata can HDMI 2.1 support? Furthermore, what additional equipment would be required to view dynamic metadata through HDMI 2.1 (i.e. Specially encoded discs?).
       
    29. dante01

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      The same hardware requirements currently in place would still be needed and obviously the video content itself will need the HDR grading and associated metadata present. HDMI version 2.1 will not make it possible to universally get HDR and the source, the AVR and the display will all still need the ability to handle and portray the specific form of HDR being used or being made available to those devices in association with the video.

      It will still be up to the hardware manufacturers to offer the support needed to play, passthrough and portray such HDR. A samsung TV is very unlikely to be able to handle Dolby Vision just because Samsung include HDMI version 2.1. Samsung would still need to meet other requirements laid down by Dolby and would still need to pay Dolby the associated licensing fees in order to be able to handle Dolby Vision.

      The benefits regarding HDR and HDMI version 2.1 are I believe what Phil Hinton was trying to get him to comment on, but the response he got was as about as helpful as a proverbial chocolate teapot.
       
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      Last edited: Jan 12, 2019 at 3:23 PM
    30. Stupot43

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      Everything you need to know about HDMI, go to:

      HDMI
       

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