Apple TV Atmos Issue?

Discussion in 'Apple TV and Home Theater' started by Big Alsie, May 21, 2019.

  1. Big Alsie macrumors member

    Apr 18, 2009
    Hello, I am at a loss on where else to look for a solution for my issue so I figured I'd post it here in hopes that one of you can help me figure this out. I am not sure if the Apple TV is to blame or not.

    Here is my equipment list:

    Apple TV 4K
    Vizio 5.1.4 Atmos Sound Bar
    2016 Vizio M65-C1

    The Apple TV is connected to the Soundbar via HDMI and the soundbar is connected to the TV via HDMI through the ARC port.

    Finally, the problem in question

    Whenever I watch a show on Netflix or HBO NOW, the audio in the menu screens (and even the trailers that play before HBO shows) comes through fine. However, once the actual show/movie starts, center channel audio seemingly drops out. It usually resolves itself if I hit "menu" on the remote, swipe around until I hear the click/menu sounds and then jump back into the show.

    Does anyone else have a similar issue? Any ideas on how to fix it?
  2. Audit13 macrumors 601


    Apr 19, 2017
    Toronto, Ontario, Canada
    Do you have the same issue if you disable Atmos on the ATV?
  3. TZeruk macrumors newbie

    Jun 16, 2009
    What kind of HDMI cable are you using? I was using an old HDMI cable with my 2018 Vizio and it was causing all sorts of issues when I had Dolby enabled. Make sure you have a high speed cable going for both your connections. The Belkin Ultra HD cable works great.
  4. Anonymous Freak macrumors 603

    Anonymous Freak

    Dec 12, 2002
    Check your HDMI cable. I had issues with Dolby Vision/Atmos until I bought a newer/better HDMI cable. (Still a cheap Monoprice one, just a newer cheap Monoprice one rated for Dolby.)
  5. Big Alsie thread starter macrumors member

    Apr 18, 2009
    Cable seems to have fixed it. I guess the Vizio supplied cable that came with the system was not up to the task of handling Atmos.

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4 May 21, 2019