My sound keeps cutting in and out on my television

"Here is my story and how I fixed this issue

Why does the sound keep cutting out?"

I have the same loss of audio on my lg cx oled tv with a denon avr-x3700h. Both units are brand new. All of my hdmi cables are new high speed . Everyone having this issue including me seems to be able to fix it with a hard reset “ unplugging “ the components. This fix is only temporary the problem comes back sometimes in a day or maybe it takes a couple of weeks. I believe there is a hardware or firmware bug with the hdmi ARC and eARC boards in these components. I know this doesn't help anyone out but this is what I believe is happening. Im going to contact the manufacturer of the components . If I have any luck ill post it here.

"There’s not much info to go on with your question, but given that the Logitech Review is mentioned…

The Review has HDMI and Optical audio outputs. Intermittent audio can be electronics in the Review, bad cable or contacts, or the TV itself.

So it’s time to proceed to fault isolation, going from least expensive to most and stopping when the problem resolves

Start by reseating the HDMI cable at both ends; check to see if the contacts are dirty.

Try a known working HDMI cable; you don’t need anything special or up to date, as the Review is old and therefore doesn’t take advantage of things like networking over HDMI

Use another HDMI source (borrow if you don’t have one) to see if it’s the Review.

Finally, see if another HDMI TV eliminates the problem.

Keep in mind that the Review is old, and Google no longer supports the Google TV software platform. If the Review itself has failed, you can get a refurbished replacement on eBay. If you are feeling ambitious, intermittent failures in audio that are in the Review are most likely failing solder joints, loose wires or cracked circuit boards. Try tapping the unit and seeing if the problem exhibits itself (or gets better). If so, and you are up for doing it, open it and look for the above faults. Re-soldering bad joints can work…and you can always try reselling a failed unit on eBay for parts if that’s more appropriate."

"We had not had this new T.V. very long, and the sound was cutting out. We had a sound bar, and we figured out that was the problem.

Our grandson pushed the input button on the sound bar remote until it went back to the optical audio setting or the setting you have yours set up to.

Hope this helps."

I have a year old un75 Samsung that the sound started cutting out on just about the one year mark. Cuts out on my bluetooth headphones. I tried everything suggested but what worked is disabling my iPhone bluetooth BEFORE I connected my headphones. The iPhone kept trying to connect and the headphones would cut out.