I split my last post into two, so this is not new content.
Today I heard some very loud ticks over HDMI ARC, I heard these ticks never before. I was listening to radio (Music Life app airable) then I switched to the TV. Instead of hearing TV sound through the SA30 I could hear the following ticks:
The following sample demonstrates a subtle silence (refer to position 0:03):
The last sample shows a more hard silence (refer to position 0:03):
All samples were recorded with my phone mic having next to the the speaker, the quality of the recording isn’t best at all however it shows the abnormalities I found.