How do you decorate for the sense of hearing? Well, actually, what you put in a room actually has an influence on how the room sounds. Soft furnishings like couches and armchairs, along with carpets, absorb sound and make a room sound muffled.
On the other hand, hard, reflective surfaces like stone and porcelain make a room more “echo-y”. Try to add soft textures to absorb some of the noise: soft furnishings, rugs and throws will help.