Contributor II

Question

Dolby 5.1 not showing under Line-In

14 replies
903 views

Hi Sonos Community,

Looking for some help please, I’m trying to get Dolby Digital 5.1 to play through my setup and to show up on the Sonos app.

The two input messages I keep getting on the Sonos App under “Line In” is either Stereo or Silence 2.0, not Dolby 5.1.

Here is a rundown of the equipment I own & how it’s all put together.

1 x Sony PS4 - Audio Output set to Dolby Digital 5.1 - Running Latest Firmware
1 x Sony TV KD - 43XD8099 - 2016 Model - Running Latest firmware
2 x Audio Quest Cinnamon HDMI Cables - 4k/8k, Ultra HD / HDR / Ethernet / eARC

1 x Sonos PlayBar - Hard Wired into Router - Fibre Optic connection from TV to Playbar
1 x Sonos Amp - Hardwired to my Netgear Night Hawk Router - HDMI from TV to Amp
4 x Sonos Sonauce In Ceiling Speakers acting as Surrounds & Stereo when listening to Music

The PS4 is directly plugged into the TV’s HDMI Port 3 which is the ARC port, then from HDMI Port 2, I connect another HDMI cable into the Sonos AMP.

I’m unsure If the HDMI Port 2 is ARC supported, does anyone know if this needs to be?

I also can’t seem to find any options within the TV that obviously says “allow Dolby 5.1 Passthrough”

Any suggestions would be appreciated.

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Show previous replies

Ken_Griffiths

I have the exact same problem. All 5.1 material is being “downgraded” to Dolby 2.0 in Arc. Dolby Atmos material is playing perfectly. My setup is:

Apple TV → LG B9 → Sonos Arc.

The funky thing is, when I use the apps installed on LG (Netflix, even the Apple TV app) I get Dolby Digital 5.1 exactly as I should. Is this an Apple TV 4K problem?

Yes it’s an issue with Apple TV, as it uses a codec not (yet) supported by the Arc called multichannel LPCM - you will need to change the ATV audio-out to Dolby Digital 5.1 (or DD+ Atmos - if that’s in the list of codecs) just for the time being.

It was mentioned by Staff here that Sonos do plan to support the LPCM codec at some point in a future update - so perhaos also keep a lookout for that update.

Pede67

Contributor I

Hi Ken,

Thanx … I can only choose between Dolby Digital 5.1 and Stereo on ATV out, so it disables the Atmos option. So. Because of this missing LPCM-support, I have to choose between Atmos and DD5.1 is that correct?

I am almost certain this was not the case, when I connected the Arc in july. I manager to get both 5.1 and Atmos back then.

Peter

Ken_Griffiths

Hi Ken,

Thanx … I can only choose between Dolby Digital 5.1 and Stereo on ATV out, so it disables the Atmos option. So. Because of this missing LPCM-support, I have to choose between Atmos and DD5.1 is that correct?

I am almost certain this was not the case, when I connected the Arc in july. I manager to get both 5.1 and Atmos back then.

Peter

Yes that’s correct too Peter, one of the LG firmware updates revealed the issue (I have the same on my C9 TV), but Sonos have mentioned they will fix the matter at their end. So I would just use the ATV Dolby 5.1 option until the LPCM update is put in place.

N

N1choalsAuthor

Contributor II

So I just thought I’d update this thread as I have now managed to get Dolby 5.1 to show up under the Sonos system app.

This is visible when I use my Apple TV4k & Play games such as battlefield V.

Ken I believe you were correct in that powering off the console seemed to have forced it to work.

So all in all very happy.

Thanks for all the help.

Nick

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