Acoustics Doesn't Have To Be Complicated!
For most folks, trying to solve noise problems can be a bit like herding wild cats, but by knowing a few basic laws of acoustics, the path can become a lot clearer. What you need to know is that there are three and only three ways to control noise; they are the ABC's of acoustics: Absorb, Block, Cover.
Absorbing sound involves using lightweight, porous materials such as fiberglass, or melamine foams to prevent sound waves from bouncing off of hard reflective surfaces, which increases sound levels, and makes the space reverberant. Absorptive materials DO NOT BLOCK SOUND!
Blocking sound involves using dense, heavy materials such as drywall, concrete or vinyl barriers to prevent sound waves from passing through them. The heavier the material, the more sound energy it will block.
Covering sound involves generating an ambient background noise, (commonly referred to as sound masking or white noise), to enhance speech privacy in office spaces, or mask low levels of environmental noise entering a home.