Arc TV sound cuts in and out.

@Kyle A

I was watching just the tv tuner on my lg cx today and shortly after turning tv on about a minute into watching something the sound just dropped completely and didn't come back, had to switch to a different hdmi port and back to tv tuner to bring back the audio.

Hi @ledzep1, thank you for the update.

Since we have an on-going investigation.

In this case, I would recommend calling our Phone support to add your TV model to the list our Engineers need to check. (If not yet added)

1 800 680 2345  Monday to Friday from 10 am to 9 pm ET.

This is to create a case for documentation and our Phone support has the option to escalate the case further if need be.

If you have other concerns, feel free to reach out.

Same issue.  Arc will not play sound on New Frame TV when Earc is enabled.  For grins, I bought a Sony soundbar to see if it’s a Samsung or Sonos issue.  Sony soundbar worked so must be on Sonos end

Same issue for me with a Samsung Q95T

Normally drops in and out 3 or 4 time an hour. Then sometimes so bad it stays in a state of switching on and off every few seconds. When it gets this bad I have unplug it to reset it to get it back to just the normal drop in and out. 
 

looking forward to the software patch 

Arc, Sub (g3) and 2 * 1SL. LG75nano996na (8k), using 8k HDMI cable via earc. Music not cutting out. TV does occasionally. TV & Sonos - latest software.  If it helps, I often hear a loud buzz (sounds like a digital signal) for about half a second when tv channel changed, and before audio kicks-in.  Nobody else seems to have mentioned this.  It’s not a problem I need you to solve, just thought it may help you diagnose the cut-out problem. Regards

Gutted with my arc sound dropping off! ☹️

Have LG OLED 77C9PUB77, brand new using arc port to new arc just purchased. TV sends sound to arc for 2-3 seconds then reverts back to internal speaker. Have tried rebooting, cables, etc. Just wired my whole home with Sonos. Now this. very frustrating. Need help!

Folks, Forgive me if my ‘little’ knowledge is dangerous, but - it seems that the Arc is supplied with an HDMI 1.4 cable which supports Audio Return Channel (arc), but not eArc (see table at the bottom of here; https://www.techhive.com/article/3330376/do-i-need-a-4k-hdmi-cable.html ). For eArc you need a 2.1 or 2.2 cable.  The Sonos Arc has an eArc connector, so surely it requires a compatible cable, not the one supplied.  2.1 or 2.2 cables are cheap enough - worth a try. Regards

Had the Arc for a couple of weeks, it looks and sounds good when all is well.

Have to say naively plug and play came to mind when I bought it, but have had to go on this forum, along with Samsung’s & Virgin Media to resolve some niggles, with the one that seems remaining now being the intermittent sound from TV. 

Sonos support have been helpful but it sounds as though there is some work to do with TV manufacturers to resolve this issue.

Currently the frequency of my issue is not too bad, and at the moment reboots get things back on track. But I have checked with my retailer how long I have left to return the unit for a full refund, hopefully it does not come to that.

Hi,

I am also having the same issue with the Arcs sound cutting out for half a second every now and then. I find it only seems to happen when watching streaming services like netflix or Amazon prime. Have not had the issue when watching virgin media. I submitted a diagnostic a few moments after a drop out in sound.

My diagnostics number is 823028576. 

I would appreciate if someone from Sonos can have a look into this for me. After first having the issue I connected everything around the Arc via ethernet cable so I don't think this would be from WiFi interference. I also have the beam and 2 surrounds in another room and never have this issue.

Thanks