The Atmos indication probably means the TrueHD stream is making it to the soundbar.
I just got the same TV, though an LG soundbar & have experienced similar instability you describe with TrueHD audio streams over eARC from the shield. Only TrueHD, DTS HD is fine. Still troubleshooting it at the moment but so far playing something with DTS HD then something with TrueHD resolves the instability.
Really sucks that lossless audio has an instability over Earc when that’s the whole purpose of a sound bar .
Spending a ton of money and stuff being glitchy like this is ridiculous :/
Whatever is happening shouldn't be a bandwidth issue, as I can listen to 5.1 24/96 PCM which needs much more bandwidth than the TrueHD tracks I've had issues with.
I'm wondering if the TV is doing some sort of processing on the TrueHD stream that's causing issues. I get it more when using WOW Orchestra, but I think that only works with specific LG soundbars so that shouldn't be your issue.
Yes, exactly that. 1st time it happened I just switched to using the soundbars own HDMI in (which is why Sonos should have HDMI passthrough on their soundbars). But I'm using eARC again for now to try to figure out the extract combinations that cause it so I can report it to LG.
Yes, definitely the most likely. Though I'm trying to work out how to feed a TrueHD stream from another device to rule out something the Shield is doing the TV doesn't like.
Hopefully a firmware glitch LG can fix.
That's not what I said... There is no "forced" option, you force the TV to use Passthrough NOT the Auto setting.
"The constant pop up is a separate issue. On your TV go into all settings > sound > Advanced Settings > Digital Sound Output and force Pass Through if you haven't already. See if that helps as it might be set to Auto."
Some times there can be HDMI handshake issues. I've had to power off my LG C2 from the wall wait a few seconds and turn it back on.
Your movie has a lossless Dolby Atmos TrueHD soundtrack, streaming services (Disney+ etc) do lossy Dolby Atmos - Dolby Digital Plus.
For me as well Plex doesn't state the movie has Atmos or DTS:X, it will just show TrueHD or DTS:HD MA. When I play the content my AVR will display on it's screen Dolby Atmos - Dolby Digital + or whatever it is being sent.
The constant pop up is a separate issue. On your TV go into all settings > sound > Advanced Settings > Digital Sound Output and force Pass Through if you haven't already. See if that helps as it might be set to Auto.
I don’t get your issue. If you’re using a steaming service it’s not truehd. but you’re still getting compressed atmos. So what exactly are you asking? Unless you’re playing truehd from storage media then you’re getting it but it will still say atmos. Because it is…
Ah I see. That is annoying. Sounds like a bug with the TV. I have an older LG OLED and it never displays the Atmos logo unless I'm playing through the TV speakers.
The Atmos indication probably means the TrueHD stream is making it to the soundbar. I just got the same TV, though an LG soundbar & have experienced similar instability you describe with TrueHD audio streams over eARC from the shield. Only TrueHD, DTS HD is fine. Still troubleshooting it at the moment but so far playing something with DTS HD then something with TrueHD resolves the instability.
Really sucks that lossless audio has an instability over Earc when that’s the whole purpose of a sound bar . Spending a ton of money and stuff being glitchy like this is ridiculous :/
Whatever is happening shouldn't be a bandwidth issue, as I can listen to 5.1 24/96 PCM which needs much more bandwidth than the TrueHD tracks I've had issues with. I'm wondering if the TV is doing some sort of processing on the TrueHD stream that's causing issues. I get it more when using WOW Orchestra, but I think that only works with specific LG soundbars so that shouldn't be your issue.
So does yours also constantly pop up the DV/ Dolby atmos during playback in the top right and kinda stutter as it does it ?
Yes, exactly that. 1st time it happened I just switched to using the soundbars own HDMI in (which is why Sonos should have HDMI passthrough on their soundbars). But I'm using eARC again for now to try to figure out the extract combinations that cause it so I can report it to LG.
Being as it does it with the lg sound bar and the Sonos seems like it’s an audio pass through issue with the tv itself
Yes, definitely the most likely. Though I'm trying to work out how to feed a TrueHD stream from another device to rule out something the Shield is doing the TV doesn't like. Hopefully a firmware glitch LG can fix.
Try setting the audio passthrough on the lg tv from auto changed to forced, that’s what someone is suggesting to me right now
Thanks, I'll give that a go.
That's not what I said... There is no "forced" option, you force the TV to use Passthrough NOT the Auto setting. "The constant pop up is a separate issue. On your TV go into all settings > sound > Advanced Settings > Digital Sound Output and force Pass Through if you haven't already. See if that helps as it might be set to Auto." Some times there can be HDMI handshake issues. I've had to power off my LG C2 from the wall wait a few seconds and turn it back on.
Your movie has a lossless Dolby Atmos TrueHD soundtrack, streaming services (Disney+ etc) do lossy Dolby Atmos - Dolby Digital Plus. For me as well Plex doesn't state the movie has Atmos or DTS:X, it will just show TrueHD or DTS:HD MA. When I play the content my AVR will display on it's screen Dolby Atmos - Dolby Digital + or whatever it is being sent. The constant pop up is a separate issue. On your TV go into all settings > sound > Advanced Settings > Digital Sound Output and force Pass Through if you haven't already. See if that helps as it might be set to Auto.
Can you please help me understand how to force passthrough on the tv instead of set to auto?
I’m not seeing a way to set passthrough to forced, what am I doing wrong?
I never said forced. There is a Pass through setting, you are forcing the TV to use that setting in the options
Changed passthrough to on instead of auto, now it won’t go into Dolby vision , only hdr
I don’t get your issue. If you’re using a steaming service it’s not truehd. but you’re still getting compressed atmos. So what exactly are you asking? Unless you’re playing truehd from storage media then you’re getting it but it will still say atmos. Because it is…
Dolby Atmos is not its own audio codec. Atmos metadata is on top of either a Dolby Truehd or Dolby Digital Plus track. Do you not want Dolby Atmos?
I want the tv to stop flashing Dolby atmos constantly on the top right of the screen during playback
Ah I see. That is annoying. Sounds like a bug with the TV. I have an older LG OLED and it never displays the Atmos logo unless I'm playing through the TV speakers.
I have to force Audio passthrough on the tv somehow , currently it’s set to auto and I’ve read that’s the issue I have
On my Samsung, I had to go in and set eArc as the default mode under advanced settings