Sony system makes strange noises?

Ca
- in Xbox
3

For a long time, my Sony BDV-N8100W home theater system has been making strange noises when used in conjunction with a game console (tested on Ps4 / Ps4 Pro and xBox). You have to imagine that the system works for a time without any problems and the sound is great and then suddenly from the excellent sound an unbearable, kräusilges noise… As if you have a very old box TV without program with the 'ruffled' quite makes loud. If you switch the system off and on again everything is back to normal until the problem recurs. The cables and connections have been replaced several times and tested, but without success.
If anyone knows further, I would be more than thankful to him!

Be

Which cable is the part connected to?

Ca

It goes an HDMI cable from the Ps4 Pro into the system and another HDMI cable from the system to the TV.

Be

Do you have electronics experience?