Carpet will certainly work but you may want to consider this as an alternative. Find a decorative fabric that will work with your decor. Then purchase 1"x3"x8' lumber, assemble the lumber into 4'x6' frames or whatever size you like and stretch the material over it then staple from behind. Hang the finished product on your walls. This will do several things, it will help control the sound, add a decorative touch to your room, save some money, and you won't have to vacuum the carpet.

CAV104