Trending Lyricist I

Question

Sonos Arc Ultra and Samsung TV - Dolby Atmos sound cutting out

Forum|Forum|1 year ago
November 5, 2024
54 replies
7319 views

Hello,

I had the same issue with my Sonos Arc. I thought it would be resolved with a new and pristine Sonos Arc Ultra. When gaming or watching uncompressed Dolby Atmos content, the sound cuts out for a split second every 20 minutes, almost on the minute. I have tried different HDMI 2.1 cables. Ultra High Speed cables. The sound is beautiful and flawless for 20 minutes at a time. So that’s about 3 moments of irritation every hour when gaming or watching movies.

Since the same issue has been here for 4 years, I’m starting to think it’s a Samsung issue. Is Sonos in contact with Samsung to resolve the issue together? I have tried about everything there is to try for the past 4 years. But I am open to suggestions.

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S

Silverthorn

Prodigy II

On an LG G4 set to HDMI(ARC) output there is not a separate pass through option

Odd. What’s set under “Select HDMI Input Audio Format”? Bitstream?

"I saw the Stooges and the MC5"

L

LuckyPenny

Lyricist II

Yes. Brand new LG 2024 77inch G4. Input is bitstream and unselectable. All output options also become unelectable once ARC output chosen.

S

Silverthorn

Prodigy II

I recently got the G4 but only have the Playbase (optical) at the moment but I have the passthrough option. I would like to upgrade to the Ultra at some stage if they can turn their financials around. Let us know what happens.

"I saw the Stooges and the MC5"

H

henebeAuthor

Trending Lyricist I

So it sounds like the drop-out in sound is not only isolated to the Samsung brand, but also LG.

Having set the digital output to Pass-through and bitstream and having the correct version of a certified HDMI 2.1 cable and having eARC activated and STILL getting the drop-out in sound… and having tried power cycling and resetting everything to factory default settings does sound like a firmware issue. Perhaps an issue that’s impossible for Sonos to fix…

G

GuitarSuperstar

Lead Maestro

On an LG G4 set to HDMI(ARC) output there is not a separate pass through option

There isn’t a Digital Sound Output setting on your TV?

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

G

GtechNL

Lyricist III

Tried all above reactions with no luck..

I was so f tired of the sound cut I moved the old ARC back to my living room (where I have the Samsung tv and the new ARC ultra to gameroom where I have the LG tv.

Guess what, the sound is Christal clear now on both TV's...

Conclusion:

Samsung QN93 + ARC ultra = sound cut

Samsung QN93 + old ARC = no sound cut

LG OLED C16 + old ARC or ARC ultra = no sound cut

Sound from ARC ultra back to old ARC is really an downgrade but I'll take it any day over the sound cut for sure. For me it was sometimes even with 5 minutes of interval

I did some more testing with the ARC ultra and QN93 with surprising result.

I already swapped the oem Sonos HDMI cable with a used one (unbranded) but I now bought a new HDMI premium cable to 100% rule it out (certified blabla, see link below) and no more sound cut! I did not believed it but it's now almost a week without issues. Kind of crazy OEM Sonos cable is such poor quality. I checked it twice but for me the issue was really the HDMI cable

https://www.hdmi.org/spec/premiumcable

H

henebeAuthor

Trending Lyricist I

Tried all above reactions with no luck..

I was so f tired of the sound cut I moved the old ARC back to my living room (where I have the Samsung tv and the new ARC ultra to gameroom where I have the LG tv.

Guess what, the sound is Christal clear now on both TV's...

Conclusion:

Samsung QN93 + ARC ultra = sound cut

Samsung QN93 + old ARC = no sound cut

LG OLED C16 + old ARC or ARC ultra = no sound cut

Sound from ARC ultra back to old ARC is really an downgrade but I'll take it any day over the sound cut for sure. For me it was sometimes even with 5 minutes of interval

I did some more testing with the ARC ultra and QN93 with surprising result.

I already swapped the oem Sonos HDMI cable with a used one (unbranded) but I now bought a new HDMI premium cable to 100% rule it out (certified blabla, see link below) and no more sound cut! I did not believed it but it's now almost a week without issues. Kind of crazy OEM Sonos cable is such poor quality. I checked it twice but for me the issue was really the HDMI cable

https://www.hdmi.org/spec/premiumcable

And have you tried watching content with uncompressed Dolby Atmos like TrueHD or tried gaming on a console like the PS5 with Dolby Atmos enabled and tested if (with the new cable) the sound still drops out?

I

Ian_44

Lyricist II

Why are Sonos not responding on any of these issues ???

L

LuckyPenny

Lyricist II

it is set to bitstream input and now also set to pass through output. same sound glitch

Airgetlam

Because this is a community site, and not an official ‘communicate with Sonos’ site? And likely the only Sonos employees that do exist here are busy moderating the forum?

Bruce

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