How effective is acoustic plasterboard really? Most acoustic plasterboards will reduce sound by 36-46 dB. Assuming you're using a single layer of acoustic plasterboard on a standard stud construction wall, you still should get a 36 dB noise reduction. ... Higher the rating, better the noise absorption capabilities.
Can you get sound proof plasterboard?
Soundproof plasterboards have been designed with a higher density core to effectively absorb airborne sound transmission. These acoustic plasterboards are easy to install and are ideal for wall linings and ceilings in rooms where greater levels of sound insulation are required.
Does sound board really work?
Sound boards are far too dense for the type of absorption we need, so in effect sound boards do not offer absorption. Mass. The low density of the sound boards certainly won't replace drywall as they are at best 1/2 the weight of proper 5/8" drywall. Sound boards do not offer significant mass.