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LedRush
Contributor I
November 19, 2022
Answered

Only Stereo PCM with Arc Sub One SLs on Xbox Series X, PS5, and Apple TV; using LG 77 inch C2

  • November 19, 2022
  • 11 replies
  • 2503 views

I just set up a new LG 77 inch C2 Oled with an Arc, Sub (G3) and 2 One SLs, but everything is showing up as Stereo PCM, whether from my Apple TV, Xbox Series X, or PS5.  I’m new to Sonos (and LG), so I apologize if this is a stupid question.  

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Best answer by GuitarSuperstar

TV settings:

HDMI Input Audio Format: Bitstream

Digital Sound Out: Pass Through

eARC: On

 

Apple TV 4K Audio Format settings:

Change Format: OFF

Dolby Atmos: ON

 

PS5 settings:

Output Device: HDMI Device (AV Amplifier)

HDMI Device Type: AV Amplifier

Number of Channels: 5.1ch

Audio Format (Priority): Linear PCM for gaming or when watching a DTS-encoded Blu-ray disc. When streaming content from the PS5 or watching a Dolby TrueHD/Dolby Atmos encoded Blu-ray disc, change this setting to Dolby.

When watching Blu-ray discs, there is another audio setting that must be adjusted when you start the disc. Tap the Options button on the controller, select the “…” and change the Audio Format setting to Bitstream for Dolby-encoded discs. Change this setting to Linear PCM for DTS-encoded discs.

 

Xbox settings:

HDMI Audio should be set to 5.1 uncompressed for non-Dolby Atmos content and gaming. Change the setting to Dolby Atmos for home theater for all Dolby Atmos content. Enable Allow passthrough.

11 replies

LedRushAuthor
Contributor I
November 21, 2022

I can’t seem to find any solutions online, so I’d appreciate any helpful suggestions.  

GuitarSuperstarAnswer
Lead Maestro
November 21, 2022

TV settings:

HDMI Input Audio Format: Bitstream

Digital Sound Out: Pass Through

eARC: On

 

Apple TV 4K Audio Format settings:

Change Format: OFF

Dolby Atmos: ON

 

PS5 settings:

Output Device: HDMI Device (AV Amplifier)

HDMI Device Type: AV Amplifier

Number of Channels: 5.1ch

Audio Format (Priority): Linear PCM for gaming or when watching a DTS-encoded Blu-ray disc. When streaming content from the PS5 or watching a Dolby TrueHD/Dolby Atmos encoded Blu-ray disc, change this setting to Dolby.

When watching Blu-ray discs, there is another audio setting that must be adjusted when you start the disc. Tap the Options button on the controller, select the “…” and change the Audio Format setting to Bitstream for Dolby-encoded discs. Change this setting to Linear PCM for DTS-encoded discs.

 

Xbox settings:

HDMI Audio should be set to 5.1 uncompressed for non-Dolby Atmos content and gaming. Change the setting to Dolby Atmos for home theater for all Dolby Atmos content. Enable Allow passthrough.

"Receive with simplicity everything that happens to you." - Rashi
    LedRushAuthor
    Contributor I
    November 21, 2022

    TV settings:

    HDMI Input Audio Format: Bitstream

    Digital Sound Out: Pass Through

    eARC: On

     

    Apple TV 4K Audio Format settings:

    Change Format: OFF

    Dolby Atmos: ON

     

    PS5 settings:

    Output Device: HDMI Device (AV Amplifier)

    HDMI Device Type: AV Amplifier

    Number of Channels: 5.1ch

    Audio Format (Priority): Linear PCM for gaming or when watching a DTS-encoded Blu-ray disc. When streaming content from the PS5 or watching a Dolby TrueHD/Dolby Atmos encoded Blu-ray disc, change this setting to Dolby.

    When watching Blu-ray discs, there is another audio setting that must be adjusted when you start the disc. Tap the Options button on the controller, select the “…” and change the Audio Format setting to Bitstream for Dolby-encoded discs. Change this setting to Linear PCM for DTS-encoded discs.

     

    Xbox settings:

    HDMI Audio should be set to 5.1 uncompressed for non-Dolby Atmos content and gaming. Change the setting to Dolby Atmos for home theater for all Dolby Atmos content. Enable Allow passthrough.

    This was a legendary reply.  Thank you so much!

    Tacoma Sniper
    Lyricist III
    December 18, 2022

    This does not work for me. I got my 77 LG C2 last night and I spend half the morning trying to get the sound to work. I have all the settings right, but I can’t get Dolby Atmos or 5.1 Compressed. My Xbox is simply telling me that the TV is not capable of it. If I run my Xbox directly to my receiver (not 120hz capable) then I can get Dolby Atmos no problem, however since I want the 120hz I am running my Xbox directly to the tv and using ARC. No Bueno. 

    GuitarSuperstar
    Lead Maestro
    December 18, 2022

    This does not work for me. I got my 77 LG C2 last night and I spend half the morning trying to get the sound to work. I have all the settings right, but I can’t get Dolby Atmos or 5.1 Compressed. My Xbox is simply telling me that the TV is not capable of it. If I run my Xbox directly to my receiver (not 120hz capable) then I can get Dolby Atmos no problem, however since I want the 120hz I am running my Xbox directly to the tv and using ARC. No Bueno. 

    What specific content are you playing on the Xbox? What audio format is displayed in the Sonos app? Do the TV’s native apps play the correct audio formats?

    "Receive with simplicity everything that happens to you." - Rashi
    Tacoma Sniper
    Lyricist III
    December 18, 2022

    Do you have an XBox and an LG C2? It doesn't matter what content you play on an Xbox, you just select Dolby Atmos for Home Theater and off you go. The problem is, that option goes away completely when I select ARC sound. 

    GuitarSuperstar
    Lead Maestro
    December 18, 2022

    Do you have an XBox and an LG C2? It doesn't matter what content you play on an Xbox, you just select Dolby Atmos for Home Theater and off you go. The problem is, that option goes away completely when I select ARC sound. 

    You should disconnect everything and unplug the TV, Arc, and Xbox from power for a couple of minutes and test it again. Also be sure you are using the HDMI cable that came with the Arc.

    FYI… if you set the Xbox to Dolby Atmos for Home Theater, you get fake “Dolby Atmos” from non-Atmos sources. So content does matter.

    "Receive with simplicity everything that happens to you." - Rashi
      Tacoma Sniper
      Lyricist III
      December 18, 2022

      I've tried everything, tried all the settings,  updsted the software, power cycled, pulled out power supplies, checked all the forums everywhere, posted several places, I am getting nowhere. Content does not matter here becuase I don't even have the option to select Dolby Atmos at all. As soon as I set it to ARC, that option goes away altogether. I appreciate you trying to help, but I don't think you have a C2 and an Xbox Series X running sound through ARC or you would  would be in the same boat as me. 

      Snorf
      Snorf
      Trending Lyricist I
      December 22, 2022

      Similar problem with 77” LG C2.  I'm not able to get passthrough working from Xbox Series X or PS5 to my LG C2 and down to Sonos Arc.  Setup is straightforward:

      HDMI Port 1: Xbox Series X

      HDMI Port 2 (earc): Sonos Arc

      LG C2 settings: hdmi input audio format is Bitstream, digital sound output Auto (I've also tried passthrough, doesn't change anything), eArc support is of course turned on.

      Xbox audio testing menu shows my TV supports stereo uncompressed, dolby digital, and dolby atmos - but not 5.1 or 7.1 uncompressed? I've read elsewhere (in this form and others) that this is supported for LPCM at least.  My old setup used HDFury Arcanas and was a lot more convoluted, but at least gave me the proper sound.

      Is this an LG issue or a Sonos issue?

      Tacoma Sniper
      Lyricist III
      December 23, 2022

      I am certain that this is an LG issue at this point. 

      Show more replies
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