Description : We have a room with the boys where we rehearse for instruments. Guitar, el. guitar, drums. But it's quite a riot, so I need to sound the room somehow. Just to keep playing out of the room as little as ... , but they had egg trays on the walls. Don't have a solution yet, or will the eggs really help?
Last Answer : Egg trays really help (plus they don't create "echo" areas). There are also special mats, but they are relatively expensive (eg http://www.m-bartos.cz/1516-protihlukove-desky/2750-tlumici-rohoze- ... they are also quite expensive. The question is how much you can / want to invest in soundproofing.