I am not sure where this fits in but two things I have noticed, if you want dead silent, you pretty much have to shoot split finger (I don't), BUT I also agree that many times we perceive our bows as loud when they really are not. I think we get fixated trying to make them quieter and quieter. Me included. So we are more sensitive.
I think mine is kinda loud, but when I replay this video, I think huh, that is quieter than I thought. The camera is about a foot away from the bow. Two different, all carbon bows.
Listen here:
and here: