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No Dolby Atmos with LG Oled C2 and Arc

  • October 7, 2022
  • 8 replies
  • 19816 views
R

Hello Everyone, 

I have a 1 month old 65 inch LG OLED C2 TV. Today I upgraded my sound system to a Sonos Arc. I am reasonably HiFi literate but despite trying a myriad of different options recommended on this, and other forums, I cannot get the Sonos Arc to play Atmos sound. It will transmit at Stereo PCM. I have simply connected the TV to the Sonos Arc using the Sonos supplied HDMI cable. The connections are from the HDMI 2 (ARC) port on the TV to the HDMI Port on the Sonos Arc. The TV’s sound output is set to HDMI (ARC). I do receive Atmos sound on the TV (not the Sonos ARC) when I disconnect the Sonos Arc and play an Atmos featured Netflix show using the TV’s speakers. Does anyone have any suggestions or is this simply a bug in the LG software?

Thank you,

Ross

 

Best answer by Ross from Australia

Hi Everyone, 

I have solved my own problem. However, I must confess that I am a Class A twit! When I was looking under advanced sound settings on the LG TV the settings were all greyed out (because I was not using the TV speakers). I did not realise that if you kept scrolling down you will find settings that you could change. All I had to do was continue to scroll down and then change the EARC setting to on. Sorry and thank you

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8 replies

R

Hi Everyone, 

I have solved my own problem. However, I must confess that I am a Class A twit! When I was looking under advanced sound settings on the LG TV the settings were all greyed out (because I was not using the TV speakers). I did not realise that if you kept scrolling down you will find settings that you could change. All I had to do was continue to scroll down and then change the EARC setting to on. Sorry and thank you

Airgetlam
Not An Opossum
2 people like this
  • Airgetlam
    Airgetlam
  • Not An Opossum
    Not An Opossum
S
  • Sid P
  • Lyricist I
  • 1 reply
  • November 22, 2022

Hi Ross,

I have the same combination: TV + Soundbar

Were you also able to select HDMI input format in Advanced Settings?

For some reason, the option is greyed out on my TV (LG C2)

Thanks-Sid

M
  • moviebumm
  • Lyricist I
  • 1 reply
  • November 29, 2022

I have the exact same problem and I can’t change it. 

R
  • Roy DH
  • Lyricist I
  • 1 reply
  • November 29, 2022

Hi all, I have the same combination. A LG65oledC2 with Sonos arc+sub+2 Sonos one SL

i also have gray options into my settings. But I think I figured it out.

what I did in the settings are:

1. DTV audio settings on Automatic

2. output digital sound To the 3th option.

3. E-Arc ON

 

I can see in the Netflix app that the Dolby Atmos is no ready to play..

 

sorry about my English. I hope you can understand. And I hope it will work 

N
1 person likes this
  • N
    Nicollers
I
  • Iamdrrahul
  • Lyricist I
  • 1 reply
  • December 15, 2022

Hello,

I have lg c2 and Sonos arc. I tried all the options that are stated in above statements but still get gray out option on Dolby atomos. Any help is greatly appreciated. 

T

Same problem here. I don't think the ARC is capable of passing Dolby Atmos unfortunately. 

Airgetlam
  • Airgetlam
  • 42867 replies
  • December 19, 2022

ARC carries Dolby Digital Plus, eARC carries MAT, both of which contain (slightly different) versions of Atmos. The Sonos Arc can play either of those. 

Bruce
D
1 person likes this
  • D
    Daren56
T

I've tried both and according to my Xbox it's very limited in high quality sound options. 

 

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