Apple Tv 4k Video settings

Discussion in 'Apple TV and Home Theater' started by DJTaurus, Feb 28, 2018.

  1. DJTaurus macrumors 65816

    DJTaurus

    Joined:
    Jan 31, 2012
    #1
    1) I mostly watch 1080p and 720p movies and series.....what format should i choose on Video settings? 1080p SDR 50 or 60hz?

    2) Do you use match content settings? Match dynamic range and Match frame rate on? Do you think that they improve motion blur on worsen it?
     
  2. BODYBUILDERPAUL macrumors 65816

    Joined:
    Feb 9, 2009
    #2
    Hey there DJTaurus! I'm in the UK and I leave mine on SDR 60. Oh gosh YES use MATCH FRAME RATE ON. This will then give you the correct frame rate for say Netflix or iTunes Films at 24 frames per second. By having the correct frame rate, you won't have any juddery jerkiness when the film slowly pans. This could occur every now and then if left on 50/60 fps / hz.
    Leaving the SDR to 60 is great as that means the beautiful user inference will run at the recommended by Apple 60 frames per second. It's a buttery smooth experience.
    If you are in the UK / Europe and your TV does not like the 60hz setting, then 50hz will be fine BUT in most cases the TV will be more than super happy to run the SDR 60 setting!
    And voila, you should have a perfect TV experience with ATV! I guarantee that you'll be very very happy!
     
  3. DJTaurus thread starter macrumors 65816

    DJTaurus

    Joined:
    Jan 31, 2012
    #3
    Ok last question. Each time i start a movie or a tv show a black screen flickers......it didnt happen in the past....?
     
  4. alexcarter123 macrumors member

    Joined:
    Mar 4, 2009
    #4
    Is there a reason you'd recommend leaving on SDR 60 rather than HDR 60 (when using a HDR tv)? Also, I still see judder when air playing content (i'm also in the UK) even with Math Frame Rate enabled. Any suggestions?
     
  5. BODYBUILDERPAUL macrumors 65816

    Joined:
    Feb 9, 2009
    #5
    Hi Alex, with the SDR & HDR settings, it's a case of which one looks better on your TV. With HDR on, the UI can appear to look dull or washed out, also if you like me play most content in SDR, then there will be that annoying 3-5 seconds of black screen during the switching. For me, that wasn't acceptable.
    Not sure about Airplay with the judder. Is it only apps on the ATV that can have the Auto Frame Rate? Have you tried using the Computers App on Apple Home Sharing? Hopefully someone will be able to explain this one.
    --- Post Merged, Mar 1, 2018 ---
    Yes that's the Auto Frame Rate and Auto SDR/HDR/DV working. This is why Apple did not implement it at first as their argument was that 'it was not elegant'. I agree but it's vital to have correct frame rate etc.

    If you switch MATCH OFF, you will not get the black screen as everything will be running in 60FPS and always HDR or SDR depending on how you have set up your ATV.

    HDMI 2.1 will address these issues with 2019 TVs and the 2019 Apple TV Box.
     
  6. DJTaurus thread starter macrumors 65816

    DJTaurus

    Joined:
    Jan 31, 2012
    #6
    I dont purchase movies/tvs. Everything i watch is torrent download and most of them are 1080p/720p......can some of them have HDR playability or only 4K files have it enabled ?
     
  7. BODYBUILDERPAUL macrumors 65816

    Joined:
    Feb 9, 2009
    #7
    Ahhhh, that's a different ball game! Although I believe friends have told me that many come from BluRay ;) iTunes 1080p HD films can have HDR/DV for iPad Pro/iPhone 8/X to download but not sure how it all works file wise.

    Sounds like none of your films will have HDR but there's no reason to try leaving it on HDR 60 and switch off MATCH for that. Certainly, Apple wanted everyone to watch everything SDR & HDR in HDR with the Apple TV when they first launched it. It was only because a crazy reviewer at a internet magazine did a massive freak out that started the ball rolling.

    Not even sure if the Auto Frame Rate will work on torrents.

    Maybe, wait until a film goes on offer at £3.99 and try an iTunes 4K film. You may be impressed.
     
  8. priitv8 macrumors 68040

    Joined:
    Jan 13, 2011
    Location:
    Estonia
    #8
    HDR is not resolution dependent.
    But, for HDR playback, the following needs to be made while encoding the material:
    1. H.265/HEVC codec and 10-bits per pixel
    2. ST.2084/PQ or HLG transfer function (modern word for the concept of "gamma")
    3. Rec. 2020 color space
    4. Optionally - additional metadata (eg about mastering display, peak luminance values etc)
    Based on my testing - the transfer function is the single critical characteristic that will make your display to switch into HDR mode.
    It is even possible to encode your home videos into HDR, if you wish.
     
  9. DJTaurus thread starter macrumors 65816

    DJTaurus

    Joined:
    Jan 31, 2012
    #9
    So you suggest me to change it from 1080p sdr to 1080p hdr?.....will apple tv auto detect dr and hdr material or it will try to display everything at hdr?.....cause hdr enhance on non hdr material has blunt results....on my Sony XE90065 (one of the best LCD tv's ever love it to death) baby i have set everything on the video settinngs, at auto.
     
  10. waw74 macrumors 68040

    Joined:
    May 27, 2008
    #10
    the upscaler in the aTV is pretty good, I'd leave the aTV at 4k SDR.
    if you put it at 1080, you won't be able to get 4K content from netflix/amazon/iTunes. And your TV is doing the upscale from 1080 to 4k
    if you play 720, the aTV does 720->1080, and the TV does 1080->4k
    but if your aTV is 4k output , then the aTV does 720->4k, so it's only processed once.


    If you have the aTV set to HDR and "match dynamic range", every time you play SDR, it will change the output from HDR to SDR.
    at least on my LG OLED, the "flicker/drop out" is fairly pronounced when changing HDR/SDR.
    since most of my stuff is SDR, I encounter that drop out much less by having the aTV default to SDR

    the dropout when changing framerate isn't too bad, and it makes things look much better
    although the screen saver tends to not be so smooth when it kicks in during paused video, since the frame rate is wrong.

    when playing SDR media with HDR output on the ATV, I find the results less than good, so i don't do that.
     
  11. priitv8 macrumors 68040

    Joined:
    Jan 13, 2011
    Location:
    Estonia
    #11
    True. I also keep mine on 4K SDR with hdr and framerate auto-adjust set to on.
    The bottom line is this - you should keep the conversions at minimum in your pipeline and try to watch content as it was released. Artificially transforming SDR content into HDR (or vice versa) only adds artefacts.
     
  12. thatJohann macrumors 65816

    thatJohann

    Joined:
    Jul 5, 2013
    Location:
    NYC
    #12
    I have the Apple TV 4K hooked up to my LG OLED B7. Under video settings I have it set to 4K SDR 60Hz and I have match frame rate and match range to ON.

    The one thing I notice is that every time I stop a movie or a show the screen goes dark for 3 or so seconds then comes back on.

    Is this brief dropout normal? Is it the Apple TV 4K making the switch to 4K SDR 60Hz every time I go back to the menu? It’s kinda jarring. Doesn’t happen on the built in TV apps like Netflix or VUDU. Only happens on the Apple TV 4K and it’s kinda annoying.
     
  13. Berman1125 macrumors newbie

    Joined:
    Sep 30, 2012
    #13
    This may be slightly off topic, but for the sake of not starting another thread...
    If something is on Netflix in dolby vision but my tv doesn't support dolby vision, but does have 4k hdr10 and 120 hz refresh rate. Will Netflix or my AppleTV or my tv show the content in ultra 4k hdr, or will I be forced to watch it in 1080p?
     
  14. satinsilverem2 macrumors 6502a

    satinsilverem2

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    Nov 12, 2013
    Location:
    Richmond, VA
    #14
    yes part of the Dolby Vision standard includes HDR10 for non dolby sets
     
  15. waw74 macrumors 68040

    Joined:
    May 27, 2008
    #15
    That's exactly what's happening,
    It's probably the frame rate switching to/from to 60 when stop/start a video file.

    That's why apple didn't have the auto-switch options when it first came out. (so people didn't complain about the blackouts)
    Personally, I'd much rather have a good looking video, with a couple seconds of black at the beginning and end, than have the entire video be over processed. (and was using the LG apps in the TV over the aTV4k until they added the option)
     
  16. DJTaurus thread starter macrumors 65816

    DJTaurus

    Joined:
    Jan 31, 2012
    #16
    I was shocked when after a lot of research on various forums and trying many settings the solution to my motion blur issues was to just try and change the setting on aTV from 50Hz to 60Hz.....can anyone explain to me in technical terms why Hz choise should have anything to do with motion blur/ judder?

    ps - as i have previous said i only download stuff 720p or 1080p from torrents most of them on mp4 format. And if they are mkv i use mp4tools to convert in just seconds....i live in Europe and if i am not wrong Apple for EU tv's suggests 50Hz not 60....
     

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15 February 28, 2018