Contributor I

Answered

Dolby Atmos with Sonos Arc and 2020 Samsung QLED (Q80T)

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I recently purchased a new Samsung (2020) Q80T (Q8DT- Costco) Series - 4K UHD QLED LCD TV and also purchased the Sonos Arc. I have connected the Sonos Arc via HDMI to the back of the TV (HDMI-3 (eARC-Port)).

In the Expert Sound Settings on the Samsung TV I have enabled:

HDMI-eARC Mode to Auto**

Digital Output Audio Format to Auto

Dolby Atmos Compatibility (selected and on)

I then go to Disney+, Apple TV+ or Amazon Prime on the native apps provided on the Samsung TV and chose a movie with Dolby Atmos listed in details. Once the movie plays I go to the “about my system” on the new Sonos S2 app and select the Sonos Arc to verify the audio output codec. **It displays the Audio In as Dolby Digital Plus 5.1 when HDMI e-ARC is set to “OFF” in the Samsung TV Expert Sound Settings and Dolby Multi Channel PCM 5.1 when HDMI e-ARC is set to “AUTO”. I do not have the Netflix UHD 4k plan at this time so I have not trialed this with Netflix.

I have never been able to get the Sonos Arc to display Dolby Atmos on the now playing screen or about my system in the app despite multiple attempts at changing the settings.

Note, I’m not streaming from an external device (Apple TV/Roku/Firestick etc), I’m simply using the native apps provided by Samsung which include Netflix, Apple TV+, Disney +, Prime...Additionally, aside from the Sonos Arc I have no other devices plugged into the TV. My TV is connected to my personal 5gHz WiFi and I’ve got decent speeds (30 mbps download and 25 mbps upload).

I can't understand why the Sonos Arc won't play Dolby Atmos. Is it a streaming issue - are the native apps not supporting the output? Is it my internet speeds? My picture seems great though. Also why does the codec change when the HDMI e-ARC is changed from Auto to Off. I would really love to be able to get Dolby Atmos sound coming from the Sonos Arc. Any help or guidance would be really appreciated. Thank you.

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jpsmith01Answer

Lyricist I

I have this same Samsung TV and just received the Arc today. It setup beautifully, and sounds great (with a couple of rear Sonos One SL speakers….Sub on the way). I originally had the same question as the original poster, but I just streamed Jack Ryan on amazon prime (using the Samsung TV native app) as a test. Dolby Atmos didn’t appear on the Now Playing screen. I went to Settings > About my system on the Sonos app, however, and I saw Dolby Atmos as the audio input to the Arc. When I went back to the Now Playing screen, Dolby Atmos was there….go figure.

so, it looks like Dolby Atmos can stream from the native apps on this Costco Q8DT!

R

raforbes

Enthusiast I

I’m sorry I wish I had an direct answer - Personally I always run an Ethernet connection to my streaming devices which includes my TVs unless I just don’t care about quality (like in the guest room). There are a lot of variables when it comes to wireless connections. I just find going straight to the router works best for me. Have you tried that? No promises but it will give you the best possible thorough put. 4K sucks a lot of bandwidth.

J

jpsmith01Answer

Lyricist I

I have this same Samsung TV and just received the Arc today. It setup beautifully, and sounds great (with a couple of rear Sonos One SL speakers….Sub on the way). I originally had the same question as the original poster, but I just streamed Jack Ryan on amazon prime (using the Samsung TV native app) as a test. Dolby Atmos didn’t appear on the Now Playing screen. I went to Settings > About my system on the Sonos app, however, and I saw Dolby Atmos as the audio input to the Arc. When I went back to the Now Playing screen, Dolby Atmos was there….go figure.

so, it looks like Dolby Atmos can stream from the native apps on this Costco Q8DT!

D

Daryl97

Contributor I

I have the q95t and I have my Arc wired straight into hdmi 3 (eARC) the Arc only shows the Arc as a HDMI Receiver as opposed to Receiver eARC - I have a horrible audio delay when using Atmos on my Xbox One X and I think a possible fix could be to enable audio pass through on the TV but this is only possible on eARC devices, which for some reason it doesn't seem to think the Arc is. Does your Q80T display the Arc as HDMI receiver or HDMI eARC?

Thanks

J

jpsmith01

Lyricist I

TV shows “Receiver (HDMI-eARC)”

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Alberta Beagle

Prominent Collaborator I

I have the same TV as the OP, ARC, Two SL1’s and Gen 2 Sub and have had no issues with Atmos playback and content from Netflix or Prime Video.

Beagle

B

bigp

Lyricist I

Planning to get the same combination Q80T with Sonos Arc. Kinda afraid because i am reading several problems with 2020 Samsung QLED with the Arc.

@Jackh

Did you get your problem solved?

Otherwise i don’t have to buy an e-ARC TV if it does not work. Thinking about the LG 2020 Nano series instead.

M

Mikelev

Enthusiast II

Can I ask, are any of the users above including the OP getting any sound out of the ARC when HDMI-eARC Mode is set to Auto.

We have identified an issue where no sound is present through any source once eARC is set to Auto.

Can you confirm please?

M

Mikelev

Enthusiast II

In response to your original post, DD+ is translated to Atmos (compressed) via HDMI ARC on limited content on Amazon prime such as Jack Ryan (only season 1). Apple tv and Disney as direct apps built into the Samsung tv do not output Atmos. Netflix as an internal tv app does output Atmos where content allows.

I believe the external Apple TV device is the way to obtain Atmos on Apple Content.

eARC enabled should allow sound from compressed and uncompressed sources such as Dolby TruHD Atmos as found on 4K UHD Blu Rays etc

Hope this helps.

A

Alberta Beagle

Prominent Collaborator I

On my set up I have eArc enabled, Atmos enabled. I am watching Netflix Night on Earth and the app is indicating Atmos. If I turn eArc off the app shows Dolby Atmos (Dolby Digital +). I purchased my TV 10 days ago.

Beagle

A

Alberta Beagle

Prominent Collaborator I

Beagle

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