Arc TV sound cuts in and out.

Diagnostic number 945223379

I experience this issue often. Right now using HBOMax on Sony x900h. Sound cuts out and then cuts back in. 
 

If I take the advice above for Sony TVs. If I switch my TV audio settings to DD or PCM, how will it effect the Atmos? 

Hi, this thread was really helpful and I have one practical question.  

Can someone pls explain the difference I would hear with Dolby Atmos while using regular ARC vs eARC?  

I have an LG C9 so can only hear Atmos through ARC and just wondering if the difference to eARC (once the update is released) is actually noticeable?  Realize its personal but can anyone actually tell the difference and would a non-audiophile be able to tell the difference?  Basically how much am I missing? 

Thanks much! 

I got really excited hearing about a software update that would fix this issue. I have a high end samsung TV and got the ARC on release day, The ARC and the TV are a continual bad mix whenever the TV is turned on - the sound cuts in and out. 

I used to unplug the HDMI and replug in with fingers crossed that it would work, sometimes having to do that multiple times. However I have found that going into the Samsung sound menu and changing the settings every time will fix it without the unplugging.

I usually have to toggle atmos compatibility to off, or to on, and that gets sound steady. Occasionally I can set the eARC to Auto, but usually it needs to be Off.

I have pass-through enabled.

Curiously, the SONOS app will tell me I am getting atmos even if the eARC is off...however, most of the time I will just be getting a steady sound of standard type but at least it is not cutting in and out.

The thing is, that is such a pain to do that I have ended up disconnecting the ARC from the tv and using built in speakers with the ARC becoming effectively an expensive brick. Sure, I can use it for music but I already have speakers for that.

I have read, written and enquired about this many times and it seems to be a known issue to the community but almost always greeted with surprise by SONOS staff. It doesn’t need a diagnostic when it is blindingly obvious that it is a known issue...so, back to the beginning of this post...apparently there is a software fix. Please push it out to all. My software is right up to date being 12.2.6 so if there is something new please hurry up. I spent £800 on this on day of release last year. I know Samsung have some hand in this and that their customer support is very difficult to engage but SONOS, if you have something do please give it to your loyal customers without the pretence of surprise...

I am also curious about it I am also using x900h with HDMI 2.1 EARC enabled HDMI Cable with an ethernet connection to the SONOS ARC.
My sound was also getting cut for few seconds and then coming back.

Its annoying but still manageable as it happens to me maybe once every two to three hours of viewing.

I have changed to PCM I would check if its better.
But I heard PCM is STERO thats not good as Arc is a 5 channel bar.

(this post mostly for following - nothing new here :-) )

Recieved the ARC 5.1 system yesterday - updated via the app.

Connected to a QE65Q80T with 1460.9 firmware.

watched a movie with dolby atmos (Greenland) and got four or five 1-2 seconds audio droputs during the movie.

Hopping the patch will be released as soon as possible.

I have this problem as well, i have a Arc with a Samsung Frame 75in TV and its been cutting in and out once every week or so, but its getting worse and is now happening every other day.  The only thing I can do is turn the arc off and on again.

This patch seems to be taking for ever, very frustrating that they have known about this problem for 8-months now and its still not fixed with obviously hundreds/thousands affected.  Spent a lot of money on the setup (for me) and didn’t think I would be having to stick my hand down the back of the TV unit to reboot every other day!!

It’s so embarrassing that I brag on how advanced my setup is that I can reboot my arc to get it to fricking work with a google home voice command to trip the smart plug off and on.  Cmon Sonos, get the fix out sometime before this pandemic is over!!!  Sheesh

I have a Samsung QA85Q80T TV and thinking about buying the ARC / Sub package.  Current firmware version of the TV is 1461.  Does anyone know whether this version has the intermittent audio cut out problem?

I have a 2019 Samsung Frame, 2020 Roku Ultra and a Sonos Arc.  The TV to Sonos Arc connection is HDMI Arc.  I had been having occasional issues with the sound from the Roku not working at all when coming from Art Mode to TV.  Doing a system restart othe Roku would fix this issue. 

Now my problem is that I get audio that cuts out every few seconds when watching something.  Doing a system restart on the Roku does not fix this issue.  Having to do a hard restart on the Arc is not an acceptable fix.

I would advise against it. I have a QN75Q8DTAFXZA with the Arc, Sub, and pair of Ones, and the sound cutting out is very annoying. All I gather from the many forums on this subject is to expect an endless stream of troubleshooting steps and no actual fix from Sonos. I am hugely disappointed in spending so much on this setup and immediately having what appears to be a known issue with no resolution in sight.