Is there any way to cut down on the noise between the walls from one room to another?

s.n.

Install insulation inside the wall, slightly difficult if you can't open the wall. You could also insyall an additional layer of drywall. There are brands that block noise better than others. QuietRock Soundproof Drywall (http://www.quietsolution.com/html/quietrock.html?utm_source=onthehouse&utm_medium=OTHpartnerbannerQR&utm_campaign=OTH0709)