Solving playback issues

[stash64]

I did check the audio options during playback and nothing was enabled.

[atc98092]

OK, it's just something that has to be verified. I'll give Disney+ a try after I finish working today and see if I get Atmos. I only have one room with Atmos support. 

[stash64]

Dan,

Thanks.  What do you have for AVR/AVP ?  I'm wondering if the problem is with my Marantz not recognizing the DD+ container as a Dolby Atmos soundtrack ?

[atc98092]

I have a Yamaha RX-V583 on that particular set. It is connected to a LG Nano85 TV that supports Dolby Vision, and I have the Ultra 4800 and a Shield connected to the AVR, which also both support DV. I have another Yamaha AVR that doesn't support Atmos or DV, and it's connected to a Samsung JU7100, which also doesn't support DV. That will likely be the next TV I replace, but it's in the bedroom and doesn't get a lot of serious use, so it's fine for now. 

[atc98092]

I'm watching Disney+ right now, the 3rd episode of Boba Fett. My AVR is showing DD+/Atmos and the TV is showing Dolby Vision. The Ultra 4800 is set to audio passthrough.

[stash64]

Thanks for checking on this Dan.  I do get Dolby Vision but definitely just 5.1 DD+ audio when using the "passthrough" option.  Does anything change when you switch to the "Auto" option ?

I think I will end up submitting a ticket with Marantz but I am checking for user input on AVS Forum first.

[stash64]

Also curious as to the difference between the "passthrough" and "auto" settings.  Is it simply that with "auto" the decoding is done by the Roku ?

[atc98092]

OK, I switched the Digital output format from Passthrough to Auto and tried Disney+ again. I still got Atmos, but them audio was reported as PCM. I notice right now on the settings menu with nothing playing the AVR is still indicating PCM/Atmos. This is bogus, as Atmos should only be shown with actual Atmos content. This is telling me the 4800 is converting ALL audio to PCM/Atmos. When I switch back to Passthough, the AVR returns to just PCM, which is accurate for being on the menu. Passthrough is also necessary for my DTS media on my server. 

[stash64]

And this is another reason I want to use "passthrough".  I don't want the Roku upconverting (faking) a soundtrack.  I just want it to pass through the best available audio from the app/source.

[atc98092]

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@stash64 wrote:

And this is another reason I want to use "passthrough".  I don't want the Roku upconverting (faking) a soundtrack.  I just want it to pass through the best available audio from the app/source.

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I completely agree. And that's the way Passthrough works for me.