Hello
Since the launch of the Sonos Arc; which now brings Dolby Atmos to Sonos Home Theater, the burning question has been whether or not one’s current TV will be compatible to pass the Dolby Atmos signal. The short answer is “yes” if the TV manufacturer claims that Dolby Atmos can be enjoyed over HDMI-ARC to a compatible speaker. Emphasis on “TV manufacturer claims”.
The fine print of that statement is that the signal is compressed over HDMI-ARC. In order to enjoy lossless Dolby Atmos (uncompressed signal) the TV must support eARC over HDMI.
As an FYI...the LG OLED C9 Series does support eARC. However, the HDMI port on the C9 series is only labeled as ARC which at first glance suggests eARC is not supported.
Ah...but wait...LG decided to make eARC selectable (on/off) in the menu settings. Here’s how to activate eARC for the LG OLED C9 Series:
Settings > All Settings > Sound
- Set Dolby Atmos to On
- AI to Off
- Sound Mode to Standard
Sound Out
- HDMI ARC
- Digital Sound Out set to Auto or PassThrough
- eARC set to On
In case you’re wondering (as was I) why LG made eARC selectable rather than an active port click this link for an explanation. Although given by a 3rd party I believe it’s as good as any available.
I hope someone finds this information useful. Enjoy.
Cheers!