Soundproofing keeps the sound of airplanes and crying children out of the room and minimized the sounds of explosions in the rest of your house.
With regard to getting a flat response and killing slap echo within the room, that's a whole other ballgame that requires diffusers, absorbers, bass traps, etc.
QuickE
With regard to getting a flat response and killing slap echo within the room, that's a whole other ballgame that requires diffusers, absorbers, bass traps, etc.
QuickE