Higher density plasterboard for walls and ceilings to reduce airborne sound transmission. Acoustic Plasterboard is an acoustic alternative to standard plasterboard. The density of the boards is higher than that of standard plasterboard. 19mm,15mm and 12,5mm acoustic plasterboard can be used to reduce noise transmission through walls and ceilings. SRU Insulation would advise that this board should be used in combination with other products to achieve the maximum levels of soundproofing. Best way to increase the acoustic performance of the acoustic plasterboards is by sandwiching a layer of MLV50 or MLV100 between them.