Samsung Q60

Sat at home decided to set up hdmi on atom … Samsung Q60 HDMI ARC TO ATOM . On terrestrial tv sounds ok if I stream anything I get a very loud high pitched clicking … so then went to tidal app ( music video ) both high pitched clicking music and video ?? … Spotify no noise and plays songs ( no video ) … so it seems any streaming service ( apart from Spotify ) inaudible … also happens when I use digital optical … so 2 top end bits of kit wont integrate by either HDMI or Optic … all very odd and annoying … has anyone had similar issues and solutions ??