Diy Soundproofing Walls . Here are the 9 best ways to soundproof a party wall. Building bookcases is a creative and effective diy method to soundproof a wall. egg carton wall art Acoustic panels diy, Soundproofing diy, Acoustic from www.pinterest.fr Make a frame, make sure the frame is the right size for your wall. 2 soundproofing existing interior walls. In my live room, i fitted an extra layer of drywall to the inside for additional soundproofing against drums.