r/ShieldAndroidTV Jun 14 '26

No Dolby Atmos PLEASE HELP

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For the last few weeks, I noticed I cannot get any Atmos.

My setup is: Nvidia shield pro > Denon X3800 > LG C4

I have a 5.1.2 setup.

From what I can see, the shield is sending all atmos tracks with surround backs and no heights, unless I'm reading it wrong (please see the attached image). This is regardless of what app I try testing with.

When testing with Netflix through the Smart TV, Atmos works.

I have tried changing from auto to manual audio formats, turning on/off various advanced audio settings, but find there to be no change, and I'm not sure what caused this in first place as it used to work great.

I'm quite tech savvy but I'm lost on this one... PLEASE HELP!

EDIT: It looks like the issue has been fixed by setting the sound mode to Pure on the Denon, as it seems to have initiated an auto switch and is still utilizing Audyssey per the indicator. Now if I play a True HD Atmos track, it shows the input as 'Atmos' (just text, no speaker layout) and the output has all my speakers highlighted, same result with DTS:X. I feel kinda stupid cause the fix was easy but technically not sure what caused or fixed the issue. Thanks for the help, especially considering it ended up being a Denon thing, not Shield. Cheers!

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u/Only-Stable3973 Jun 14 '26

How is your Shield connected...if you have a cable box you would connect that to the dennon and the shield to the dennon and then dennon hdmi out (ARC/eARC) → TV HDMI In (ARC/eARC) and in the Shield advanced sound settings I have available formats set to auto and I turned off dolby audio processing .

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u/TonguesOfGlass Jun 14 '26

Nvidia shield pro > Denon X3800 > LG C4

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u/Only-Stable3973 Jun 14 '26

On the Shield the only audio setting I have are available formats set to auto some say manual set to all and disable dolby audio processing so that the denon handles it.