Dolby Atmos is always shown in App

In the Sonos App, go to System > System Settings > About My System and scroll down to the Sonos Arc information and look at “Audio In:” This will tell you exactly what type of audio the Arc is playing. 
 

FYI, you can’t get Dolby Atmos audio from YouTube videos.

I’m having this same problem with my Xbox Series X. I’ve got the Arc, 2x Gen 3 sub’s & 2x One’s and whatever I watch it’s stuck on Dolby Atmos in the main screens and within settings even when watching YouTube and I’ve checked the rears; nothing is coming out, is this a bug?

The Xbox or TV is probably upmixing the audio to Dolby Atmos. What are your audio settings on your TV and Xbox set to?

Hi Guitar,

Firstly, thanks for replying so quickly! My TV is an Aldi TV with just an ARC port which doesn’t give me a eArc signal so I bought a HDFury Arcana dongle which like you said previously upscale the signal; my Xbox is connected directly into the Arcana which for some reason just upscale literally everything to Dolby Atmos but on Xbox I have the following setting:

Speaker Audio Option:

• I’m using the following setting “Bitstream Out” out of the following options: Off, Stereo Uncompressed, 5.1 uncompressed & 7.1 uncompressed.
• in the Bitstream Format settings I selected “Dolby Atmos for home theatre” and these were other options: DTS Surround, Dolby Digital & DTS:X for home theatre (HDMI).

If I chose Dolby Digital within the Bitstream Format, it says Dolby Digital 5.1 when watching Atmos content on Disney+; whereas when if I’m using Dolby Atmos, it upscale a everything even YouTube to Atmos and it never goes away.

The Arcana doesn’t upscale the audio signal. It just allows any external media device to bypass your TV and send audio directly to the Arc.

From what I can tell, the Xbox just upmixes everything up to Dolby Atmos when you have “Dolby Atmos for Home Theater” selected.

I found this on another website about the Xbox:

When using “Dolby Atmos for Home Theater” audio settings:
Streams non-Dolby Atmos content (e.g 5.1 channels) on Netflix, Amazon Prime or Vudu apps, Xbox One console will cause the console to send out blank Surround Left and Right audio channels, causing missing audio on the Surround Left and Right channels of the soundbar.

Solution:
When streaming 5.1 non-Dolby Atmos content on Netflix, Amazon Prime or Vudu apps, change the audio bitstream output to Dolby Digital to experience surround sound from all channels.

https://www.helpdesk.nakamichi-usa.com/xbox-series-x-audio

That’s amazing, thank you! So, I’m other words, every time I’m going to need to change it to either get 5.1 or Atmos; am I understanding it correctly?

Also, if I bought a TV with an earc port, would I still have this problem?

So, I’m other words, every time I’m going to need to change it to either get 5.1 or Atmos; am I understanding it correctly?

Yes, it seems so. If this bothers you, you should consider getting an Apple TV 4K or Roku Ultra.

Also, if I bought a TV with an earc port, would I still have this problem?

Yes. The Arcana is basically a TV with an eARC port without the TV screen.

GuitarSuperstar, you are the best. So now I’m asking would I notice any major improvement by adding an Arcana to my Sony tv that has only an Arc output? It has 3 inputs plus Android tv. I have an Apple TV 4K, a Firestick 4K, and a Roku Ultra 2020 plugged in.

@toyboy Are you currently getting Dolby Atmos audio playing out of the Arc from those three devices?

With Netflix only the Roku Ultra 2020.