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DD+ 5.1 display as atmos

  • October 18, 2025
  • 1 reply
  • 46 views

Hi everyone I struggle with some content.

the audio file is doldby digital + 5.1 and the app is showing dolby atmos which is not.

it cause some issue (cutouts every minute mostly)

my settings on my nvidia shield and lg cx is everything passthrough even on my KODI

when I switch to lpcm (not passthrough) there is no issue.

also when I read true atmos files there is no issue as well.

 

Sonos arc sub gen 3 and one sl rears

lg cx 65

nvidia shield pro

 

any idea ?

 

thanks !

1 reply

Jamie A
Forum|alt.badge.img+17
  • Sonos Staff
  • October 20, 2025

Hi ​@Ace-Gio

I’m sorry to hear that you’re having issues playing Dolby Digital+ 5.1 content. You should be able to play that on your system without it cutting out. 

If the app is showing Dolby Atmos, then somewhere down the line the format being passed to your Sonos Arc is being adjusted. I’ve seen other posts with similar setups to you, and these were the suggested settings for your Nvidia Shield and LG TV:

On the LG TV, adjust the following settings:

  • HDMI Input Audio Format: Bitstream
  • Digital Sound Output: Pass Through
  • eARC Support: On

On the Nvidia Shield, go to Settings > Device Preferences > Display & Sound > Advanced sound settings > Available formats and set this to AUTO.

Once you’ve adjusted those, try to play your Dolby Digital+ 5.1 tracks again to see if they’re showing correctly. If you still aren’t seeing the correct format, try playing something without the Nvidia Shield to see if the wrong format is still being shown.

While I don’t use an LG TV or Nvidia Shield myself, my post will push your thread to the top of recently active, where another use who does could reply with their recommended settings. 

I hope this helps!