Usually, your CV joints won't make noise unless they have had cracked open boots for a few thousand miles. Get under the car and look, or turn the wheel and look. The other thing is that if these are replacement axles, maybe they sold you repacked bad joints. It's happened to me before I knew better.

To check them while driving. Come to a stop, turn the wheel and accelerate. They will make the most noise when you are pressing on the gas and not coasting or braking. They make no noise when going straight because all the joints parts are static relative to eachother when not turning.