I don't know about the "Liberty," but some bows, type and setup, not brand, can be quite noisy when the shaft is of type and/or weight that cannot absorb most of the bow's energy when shot. What the arrow does not absorb has to go somewhere, and it (energy) does not dissipate into the air. It goes back into the bow, the string, accessories, the person, etc.

However, with all the noise that was being described, my first suspicion was that the draw-weight was set at the bottom of the draw-weight range, which some types of bows do not handle well without becoming excessively noisy; or that the string/cable is/are too long or has stretched excessively and the bow is now sloppy.

I would still put that bow on a scale and check the draw-weight again, especially if the bow has been put in a bow press recently?