Does HDMI ARC Support Dolby Atmos?

Soldato
Joined
26 Aug 2012
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Please ignore my ignorance here, but please let me know if this would work.

If I have 4 HDMI devices connected to my LG oled tv to get Dolby vision.

Can I then use the hdmi with arc to return the audio to my sound system ? While using another hdmi for input to the screen ? So the screen passes through the audio essentially?

As my AV unit should support Dolby vision pass through, it’s intermittently dropping out so wondered if this would be a potential solution.

Any drawbacks compared to video pass through if this works ?
 
What OLED do you own, I know 2016 LG OLEDS do not support the higher quality sound formats over ARC.

I think the TV needs that newer eARC to do it, not entirely sure though.
 
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