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Contributor I
June 16, 2020
Answered

Arc TV sound cuts in and out.

Just got the Arc and have it paired with 2 Play:1’s and a gen 3 sub. 
Samsung Q80R tv. 
 

The sound from the tv will play for around 5 seconds and then cut out for around 1 second, play for 5, out for 1, on and on. 
 

I’ve swapped out the hdmi cable twice, tried unplugging the tv, switched between PCM and DD+ and switched between different apps on the tv. 

The sonos app shows that I am getting an atmos signal  


Was running a beam with the Play:1’s (but no sub) before just fine.

 

Not sure what I should try next.

 

Thank you,

mike

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Corry P
Corry PAnswer
Sonos Staff
March 9, 2021

Thank you all for all your efforts and testing. A system update has now been released which also include a fix to this issue (it disables the Sonos “screensaver” on an Arc if connected to a Samsung TV). Please update your Sonos systems. If you’re still experiencing problems after updating, please let us know.

"Common sense is the collection of prejudices acquired by age eighteen." - Albert Einstein

758 replies

Lyricist I
November 7, 2020

ledzep1,

Not sure if this is what you are looking for:

Sound Out = HDMI ARC

Additional Settings:

  • HDMI Input = Bitstream
  • LG Sound Sync = off
  • Digital Sound Out = Pass Through
  • eARC = On
Headliner II
November 7, 2020

ledzep1,

Not sure if this is what you are looking for:

Sound Out = HDMI ARC

Additional Settings:

  • HDMI Input = Bitstream
  • LG Sound Sync = off
  • Digital Sound Out = Pass Through
  • eARC = On

Thank you 

Same I think, my issue is that when changing between sources can be anything, for example exiting internal netflix app back to live TV the sound will drop, or turning on xbox one x to play a game and the game will have no sound.

I can remedy it by switching back and forth between sources or switching eARC off and on.

It happens occasionally, I hope a firmware sorts it soon though, as to pay such a large sum for the ARC and Sub and have these issues like many of us is a shame.

Another instance, was the other day I was watching Ted Lasso on Apple 4k box, watched 2 episodes fine in atmos, played episode 3 and no sound, so had to turn eARC off and on to get sound back.

Just seems like the sonos ARC and eARC connection is not very stable and craps out a lot at any random time, I never seem to have a drop occur during watching something though, always before I start something.

 

Dogdad
Headliner III
November 7, 2020

Really, you owe it to yourself to at least try a different HDMI cable.

Spent a week with new OLED65CX and Sonos ARC intermittently losing ATMOS connection. Would see flashing volume indicator and ATMOS indicator on screen requiring me to restart TV to resolve. Had purchased new "High Speed 4K HDMI" cables which appeared to be very well constructed. Tried all manner of setting changes noted here and elsewhere. Turns out a simple swap to the flimsy appearing HDMI cable that came with Sonos ARC resolved all issues. Hope this saves someone a little heartache on their new purchase!

Sorry..doesn’t solve everyone’s problem including mine. I’ve tried 3 different cables and still have audio drop. You may think your issue is resolved, but maybe not. It might drop again on you in 30 days...as others have experienced, but thought they had resolved the issue. Problem could appear again in a couple I’d days, or a couple of weeks . We can’t make it happen to troubleshoot. 

Trending Lyricist I
November 7, 2020

I just switched back to the “old” Sonos cable and using the same settings as DaRealDrPhil on my Lg b9… Lets see if it solves the problem.

Trending Lyricist I
November 7, 2020

Nope. Sadly it changed nothing and the problems are still there.

Lyricist I
November 8, 2020

Just purchased an Arc and I seem to be having a similar issue. Voice/speech sound regularly jumps between being clear and then tinny/faint. Quite strange and very annoying.

 

It seems these issues have been going for a while, so I’m fairly inclined to return the whole system unless a fix is on the way. 

Lyricist III
November 8, 2020

I have tried different cables, different settings, different apps, different TVs. I had different Sonos products, the Beam, work on the TVs in question with no issue. I had the problem not come back for weeks at a time, I had problem come back within minutes.  There is definitely an underlying issue somewhere with the Sonos Arc.  Don't think a temporarily fix is really your solution - we need to push for Sonos to come up with a real solution.  My guess on why it is taking longer to fix is because like many users, they themselves are not able to replicate it constantly.  Not being able to do that makes it definitely harder.

Trending Lyricist I
November 8, 2020

Any update, Sonos?

Is cause of problem known?

Timeline for a fix?

Lyricist I
November 8, 2020

I have just purchased the Arc and a Sony A8H 65 inch TV. I am experiencing multiple audio drop outs where the sound just stops. I have to flick the pass through setting in the TV to Auto and then off again to get the sound back. Prior to the Arc having no sound I can hear small drop outs in my setup (arc, sub gen 3 and 2 one SLs). It happens on Atoms audio. If I use PCM which defeats the point of the setup as it's only registers stereo 2.0 I do not experience the issue (so far). It is almost as if the arc's memory is overflowing due to the greater audio demand. I really hope this is not a hardware issue and can be fixed with a software update.

I have replicated it about 8 times on our planet episode 1 (2019) on Netflix at the same point (about 25 seconds in). Just tried it again PCM works OK then Atmos drops out at the same point. Replicated this over multiple days. Anyone else getting this issue at the same point on a stream?

Trending Lyricist I
November 9, 2020

Do we know if this is a hardware or software issue? If its a software issue then you would think that more people would complain about it. 
 

eARC is completly broken for me and im having a hard time understanding why the problem is still there.