Unless you know how Fourier Transforms work (and I’m probably guessing no because if you did, you would have been taught how to use it to separate frequencies in sound), there probably isn’t a good way to do this.
I’m in second year university and I still don’t know how it works. I’m not sure what your math skill level is, but it’s not really something you can pick up easily. There are existing APIs in other programming languages you can look up, and I’m pretty sure I’ve played a game that could analyze the sound characteristics here on Roblox (but I will probably never find it, sorry).
Hope this helps