Arc TV sound cuts in and out.

Hi @WRM 

Don’t worry about disabling CEC on the Apple TV - it won’t be the problem, or we’d hear a lot more about it.

Have you tried unplugging your TV and Arc from power for 30 seconds?

If so, and it didn’t help, please try disabling the eARC option on your TV - you can still get (compressed) Atmos via normal ARC using the Dolby Digital + (Atmos) format.

Ok. Will try disabling eARC. But by doing that what am I giving up?

@WRM 

Only uncompressed Atmos. You’d need a very good pair of ears and ideal listening conditions to tell the difference between compressed and uncompressed, if it’s even possible.

However, if a source is only available in Atmos rather than Dolby Digital + (Atmos), the TV would convert it to standard Dolby Digital 5.1.

Thanks. Is there a complete solution in the works? Under current conditions the speaker is doing less than advertised. 

Hi @WRM

We aren’t aware of any current issues with the Samsung Q80T and Arc. 

I recommend you get in touch with our technical support team, who have tools at their disposal that will allow them to give you advice specific to your Sonos system and what it reports. 

This is not resolved.  My sound cuts in and out every 20-30 mins for about 3-7 secondswhile watching dolby atmos content on my 2020 frame tv.

Same for me. Samsung Q80t updated itself to latest software ver. 2016. Still having sound issues with Atmos content. Also, as suggested, I disabled eARC. That has NOT helped. 

Also disabling earc wouldn’t give me dolby atmos sound…and also renders this arc pointless in the first place…

@dcva_ and @WRM, 

It appears that the best way forward for you both, would be to contact Sonos Support, as suggested above, in order that the Staff can establish precisely what the issues are and perhaps just in case they are specific matters related to your own HT setup. 

Anyway, hope your are able to get your issues resolved soon.

I’ve been a long time follower of this thread and wanted to give me own experience on this matter.  I own a 2020 Samsung Q80T and have had it connected to an Arc for almost a year now.  In that time I’ve had this infamous audio skip which has been tormenting me.  Any Atmos and even some non-Atmos content would cause audio to skip every 1-10 minutes like clock work.  I honestly thought this would never end.  I was going mad like everyone else.

I’m a cable cutter so I was using a 2019 Shield TV (Tube) for all video/audio, a 15 ft HDMI cable going from the Shield to TV and another 15 ft HDMI cable going from the TV eArc port to the Arc.  Both cables were HDMI 2.0b rated.  Firmware was always up to date on the TV, Shield and Arc.

About two weeks ago I finally said enough is enough and re-did the whole setup.  I swapped the Shield TV to a Shield TV Pro (Mainly to get more RAM and move from a 32-bit to 64-bit OS), I wall mounted the Arc and connected it to the TV using the Sonos provided HDMI cable this time.  I also swapped out the HDMI cable connecting the Shield TV Pro with a 2.1 rated one (15 ft).  Lastly I factory reset the TV and Arc (The Shield started from a wiped drive since it was new).  

Once everything was set back up I made sure all CEC settings were turned off on all devices (Anynet+ on the TV had to be left on in order for eArc to work), I made sure audio pass-through was enabled on all devices, and I made sure HDMI Input Signal Plus was enabled for all ports being used on the Samsung.

Lo and behold I’m two weeks in and not a single audio blip.  Which change above fixed things?  No idea.  I like to think the new cable and factory resets were the most likely cause.  I also moved the HDMI cable from the Shiled from input one to input four on the Samsung since it was the only HDMI 2.1 port on the TV.  I know this shouldn’t matter but I thought mind as well use the port with the higher specs since it was available.

Lets hope I can put this issue to rest from here on out.  Good luck to all and yes there’s still hope for you.