how to soundproof a wall Hard surfaces are a primary cause of sound reflection, corner surfaces reflect off each other causing reverberation and bass traps, and mirrors and windows can cause sound to bounce. Acoustic foam panels are often used on walls, ceilings, and floors to reduce noise and suppress echoes and reverberation. The JSFURN acoustic panel is also perfect for solving noisy neighbors' soundproofing measures. It can also decorate rooms and design DIY creative areas in the home. Great for spot-treating sound in your studio or office on walls - The perfect soundproofing padding for walls, recording studios, control rooms, offices, home studios, and home entertainment theaters, easy to shape and cut to size, altering won't affect performance. Or use it on the ceiling, behind the TV, or under your rug!