Hdmi, firestick audio issues

[Raindogdav]

I love the hdmi options with my ultra, it has been brilliant. At some point yesterday I started to get constant clicks with slight audio change fluctuations when using my firestick. I have checked everything that I can change, no idea why it just started yesterday. Can anyone advise? Cheers

 

[Raindogdav]

I have resolved this by changing audio settings on firestick to best rather than PCM