I agree jessiebean I too have a highly spirited child ((3yrs) who needs to be loud, expressing herself in a very energetic way, acting like a dinosaur etc, that is 'her' way that she expresses herself and gets it out of her system.
Yes she can be loud but yes that is just how some kids are. My DD1 is not a quite child, she's a chatterbox and extremely Confident which I wouldn't change for the world

I also agree that sometimes trying too hard to control your child can make things worse.