Soundbar sound issue

[daviddr115111]

My hw-360 Samsung sound bar has now started to make what sounds like a feedback sound like a guitar and you plug it in to an amp. Hours go by and it won't do it or it duz it every other min. I'm using digital optical out to my hd 4k Samsung tv.

 

[helpstar]

try other sources

is a microphone or headset somewhere in the setup?