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Dann024's avatar
Dann024
Channel Surfer
2 years ago
Solved

Can I get Dolby Atmos on my old TV?

Not 5.1 / Dolby Atmos in old TV Hello, I have a question regarding 5.1 or Dolby Atmos. I have an LG TV that supports Dolby Digital and DTS; it has one ARC port (no EARC) and th...
  • atc98092's avatar
    atc98092
    2 years ago

    I looked up your TV model, and confirmed it does support ARC. I have a hunch the TV is new enough that it should pass 5.1 audio via ARC. But because the TV doesn't support EAC-3, it won't process Atmos from an online source. I had a friend notice your issue and offers this info: 

     yes the 4800/4802 will solve their problem of being able to get/send 5.1 from their apps when connected to/through their TV (it passes DD, but not DD+ from HDMI) - the 4800/4802 will convert the DD+5.1 from apps to DD5.1 for output to their TV (and from their TV via Optical/ARC to their SB/AVR).

    DD+ 5.1 = No
    DD+/Atmos = No
    DD5.1 = Yes

    They need to configure the 4800/4802 for Passthrough mode and it will still convert DD+ to DD for output.

    But again, Atmos won't be possible, since it requires DD+ audio passthrough. 

Dann024's avatar
Dann024
Channel Surfer
2 years ago

My Poseidon D60 soundbar supports Dolby Atmos, but I am not sure if purchasing the Roku Ultra will work with my TV.

If I force the Dolby Digital Plus sound on Roku (premiere), Netflix displays the 5.1 logo but without sound.

Do you think the Roku Ultra will work for my case/situation? I don't want to waste time and money buying it if it won't work.

 

atc98092's avatar
atc98092
Community Streaming Expert
2 years ago

I had to look up the specs of the Poseidon D60. Yes, it supports Atmos, but it doesn't have additional HDMI inputs, and can only get the audio back from the TV via eARC or optical. Since your TV doesn't have eARC, I don't think you can connect any device to the TV and get Atmos audio back to the soundbar. ARC is supposed to pass EAC3 with Atmos, but see my next comment.

The fact that you can't get 5.1 audio from a connected device back to the soundbar appears to show your TV will not pass multi-channel audio from connected devices out to the soundbar. Some older TVs are like that, only sending two channel PCM audio. They will send 5.1 audio from their internal apps (and of course broadcast TV) but not from any device connected to an HDMI port, such as your Roku. 

Since you can't get 5.1 from your Premiere, it's doubtful you can get it by switching to an Ultra. Unfortunately your TV appears to be a roadblock for that, so the only solution is a soundbar with HDMI inputs or an AVR. That's a shame, as your soundbar looks like a pretty good deal. 

  • Dann024's avatar
    Dann024
    Channel Surfer
    2 years ago

    Thank you so much for your help.

    By the way, my TV model is LG-47LB650T.

    • atc98092's avatar
      atc98092
      Community Streaming Expert
      2 years ago

      I looked up your TV model, and confirmed it does support ARC. I have a hunch the TV is new enough that it should pass 5.1 audio via ARC. But because the TV doesn't support EAC-3, it won't process Atmos from an online source. I had a friend notice your issue and offers this info: 

       yes the 4800/4802 will solve their problem of being able to get/send 5.1 from their apps when connected to/through their TV (it passes DD, but not DD+ from HDMI) - the 4800/4802 will convert the DD+5.1 from apps to DD5.1 for output to their TV (and from their TV via Optical/ARC to their SB/AVR).

      DD+ 5.1 = No
      DD+/Atmos = No
      DD5.1 = Yes

      They need to configure the 4800/4802 for Passthrough mode and it will still convert DD+ to DD for output.

      But again, Atmos won't be possible, since it requires DD+ audio passthrough. 

      • Dann024's avatar
        Dann024
        Channel Surfer
        2 years ago

        All cleared up. Thank you very much.