Issues with Xbox Audio, third party video apps and Samsung Q90r Soundbar

Any new update on this situation. I have an LG CX hooked up to a Samsung Q90r soundbar. If the Xbox is set to Dolby Atmos there is a noticeable delay. Unfortunately on the LG OLED and the soundbar you can not reduce the audio delay so you can only further increase it. However if I choose 7.1 uncompressed I have no issues.

Ok... wow after a few frustrating hours I have it.

First. Im running

Q80R tv

Q90R soundbar

Xbox one X

Connected.

Xbox hdmi out into soundbar hdmi 1

Soundbar hdmi arc to tv hdmi arc

Settings

Soundbar set to hdmi 1

Xbox - video settings

- most video mode check boxes on

- res = 4k

- fidelity and overides are default

- pretty much all green ticks in 4k tv details

Xbox - audio settings

- hdmi audio = bitstream out

- bitsream format = Dolby atmos

Tv

- source = soundbar

* note that in sound settings, expert settings the output says PCM but no need to pay attention since the source is the Xbox, nothing going from tv. If u flick to to a tv app like Netflix running on tv then it will change to atmos and send atmos to the
soundbar from tv.

Things I got wrong

- firmware latest on soundbar. I read a few posts about pass through not working on old firmware.

- the hdmi cable I was using for arc wasnt v1.4 cable. Seems that makes a difference... i had a v1.3 and nothing. A v1.4 comes with the q90r soundbar, use it for the arc connection.

Finally... how do I know it works.... I downloaded atmos test .mp4 from the Dolby website onto usb played on Xbox. No doubt... very happy

Recently acquired the Samsung-Q90R soundbar supporting Atmos. Have everything set up, but as soon as I select Atmos as the encoding on my Xbox, no sound at all. Works fine with Dolby Digital and DTS. Never had a working setup before this update, but I can't
get Atmos to play any sound at all.

Wondering if I have to take the Q90R back... it sounds great even without the Atmos, but this is supremely frustrating.

I'am adding myself to the list of people with the issue of audio signal being lost on Xbox Series X switching between apps, home screen or games using a Samsung Q90R

I can only hope that Samsung, Microsoft or both fixes this issues soon.

I also noticed that FreeSync // VRR causing washed out / grayed out colors sometimes when a game is started (being a reproducable issue, happens 1 out of 4 times or so when starting a game) don't know if this has anything to do with the audio issues but wanted to leave this info as well.

Hey so I will say, I have tested this with an HT-7000 as well as an LG S95QR, and the issue with centre channel audio/subwoofer not working is an issue exclusively with the Samsung soundbars.

I have an LG G2 OLED, and it’s e-Arc port might have changed if you have say a C1 or CX, but I have no issues with lipsync/audio delay on these TV’s when the tv settings, Xbox and soundbar settings are correct (lag is indistinguishable from 7.1 uncompressed). Sometimes it is a result of the TV though and it’s e-Arc port/processing, so the Sharc V2 by ThenAudio is a device that you would have to add if your still experiencing audio delay issues.

First thing of order though is getting a viable Atmos soundbar for Atmos gaming, which the Samsungs at the moment are not. From My understanding, there are different “types” of Dolby Atmos, just like there are different types of Dolby Vision (such as Low Latency Dolby Vision/LLDV, and regular Dolby Vision). The Q930B doesn’t support every Atmos format.

Last years Samsung soundbars had the same issue. They could use Dolby MAT (Blue Ray version of Dolby Atmos), and it wasn’t until the 2022 soundbars that they fixed this. Now, this years soundbars don’t support LPCM Atmos, or Dolby Mat 2.0. You can see this issue actually present on the soundbar, if you go into a non-Atmos game on your Xbox (when set to Dolby Atmos for Home Theatre), and you check the information on the soundbar it displays as “Multi-Channel PCM” rather than “Dolby Audio”. It’s an issue with the soundbars not supporting enough audio formats essentially, and it downconverts it to another channel, causing issues.