Thanks, I will check it.
I think that you are not talking about a supercharger, but about the sound of a whistle, which depends on the speed of the aircraft. Yes, there are two like-whistle sounds in BF-109. And the second consists of two main frequencies, which each plane has different in real life.
Is it very loud with minimum speed too?
Please explain what kind of identical sounds issues you are talking about. None of the aircraft but 109 have a supercharger.