Contributor I

Question

sonos home theatre system PCM 2.0 with Samsung Tv that supports Dolby Atmos

20 replies
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Have Samsung tv that supports Dolby atmos. Made changes to the tv settings to not use PCM and send the raw audio to the home theatre system that includes arc, mini sub and 2 era 300s. Arc connected via hdmi eARC. Video on Apple TV supports Dolby atmos. Still the audio in shows empty and the status says HDMI and PCM2.0. What should I do?

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G

GuitarSuperstar

Lead Maestro

What is the Digital Output Audio Format setting on the TV currently set to?

"Receive with simplicity everything that happens to you." - Rashi

C

ChigstuAuthor

Contributor I

Pass through and the delay as 130

G

GuitarSuperstar

Lead Maestro

Very strange. Samsung TVs are the worst. One other thing to try is setting the Digital Output Audio Format setting to Auto instead of Pass Through. If this doesn’t work, you might consider getting a streaming device like a Roku Ultra or Apple TV 4K.

"Receive with simplicity everything that happens to you." - Rashi

C

ChigstuAuthor

Contributor I

Might replace the TV in a few weeks. What company has the best integration with Sonos? Is it worth talking to Sonos customer service about this?

G

GuitarSuperstar

Lead Maestro

LG and Sony seem to work well with Sonos. I have an LG C3 OLED that works perfectly with my Arc setup.

Does your TV have the firmware installed?

It wouldn’t hurt to try contacting Sonos Support.

"Receive with simplicity everything that happens to you." - Rashi

R

Rhonny

Prodigy III

2020 Samsung TV works very well with Arc, sub and surrounds here…

Ensure you’re using a high-speed HDMI 2.0 cable.

Sound output: Receiver (HDMI-eARC)

Sound Expert settings:

HDMI-eARC Mode - Auto

Digital Output Audio Format - Pass-through*

Dolby Atmos Compatibility - On

General - External Device Manager - Input Signal Plus - ensure all HDMI ports are set to ON.

*only useful if you have another box (eg Sky, Apple) connected to the TV as it passes the box’s sound through untouched. Otherwise if using the TV’s built-in apps, stick to Auto!

R

Rhonny

Prodigy III

As well as my suggested settings (above), do you pay for the premium tiers on Disney, Netflix and Now? If you are on the basic tier for Disney and Netflix, and also don’t pay for Boost with Now, you might only get PCM 2.0 (eg stereo). Also most TV transmissions are only stereo so the majority of the time for ‘normal’ TV you will see PCM 2.0.

Not sure why there’s no 5.1 for Apple TV+ though…

But try my settings first!

C

ChigstuAuthor

Contributor I

Changed the settings as mentioned above and played Batman dark knight on Now and now it shows it as Dolby MAT 2.0. I was expecting something more along the lines of 5.x or 7.x. Any other settings to check?

R

Rhonny

Prodigy III

I get Dolby MAT 2.0 when watching footie on terrestrial ITV HD. So I think you’re set up correctly. It just sounds like you’re not getting 5.1 from your apps. Are they all up to date?

Do you have free, basic or premium tiers for your apps…?

C

ChigstuAuthor

Contributor I

I have the ultra HD package on Sky (box). I only get a PCM 2.0 when watching BBC or ITV. Checked - premium versions of at least Disney+ and Apple TV+. Netflix says it’s the ad free version so I am guessing it is the premium tier. Not sure what else I could try.

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