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NO ATMOS Sound

Products:

  • SONOS ARC
  • LG OLED65C8PUA
  • Apple TV 4K (2nd generation) 2021 (A2169)

Cable setup:  

  • ARC via HDMI cable into LG HDMI ARC input
  • Apple TV via HDMI cable into  LG HDMI (standard) input

 

Apple TV Settings:

  • Audio format / Immersive Audio ATMOS setting = greyed out

 

NOTE: LG OLED65C8PUA TV does NOT have eARC.

 

Can I ghet ATMOS with these products? 

 

IF YES - detail cable setup and/or Apple TV Audio settings

 

Thank you.

 

Moderator Note: Modified in accordance with the Community Code of Conduct.

Usually the Apple TV 4K requires a TV with eARC to play Dolby Atmos audio because the Apple TV uses a Dolby MAT encoder to play Dolby Atmos. But some model TVs can convert the Dolby MAT audio to Dolby Digital Plus and play Atmos audio.

 

Try these TV settings (if available):

HDMI Input Audio Format: Bitstream

Digital Sound Output: Auto

DTV Audio Setting: Dolby Digital Plus (or Auto)

None of those settings on the TV are available

None of those settings on the TV are available

I find that hard to believe. Can you post photos of the current sound settings on your TV?

 

Those are the only 2 options. I tried both. No go

Can you post photos of all the settings on the first level of the Sound menu?

 

 

There you go

Totally silly but maybe give this a try:

https://www.reddit.com/r/sonos/comments/gzgjtf/atmos_not_working_with_lg_oled_and_netflix_on_arc/

 

Edit: I know that pertains to a c7 but I found multiple threads with c8s who point to it as the solution.

 

 

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