Why is noise a problem?

The need for noise-reduction solutions in residential and commercial projects are increasing due to a variety of factors. High prices of single-family homes mean more Americans are living in condos, apartments and townhomes, and higher-density development is putting them in closer proximity to their neighbors. In San Diego, building permits for multifamily housing exceeded those for single-family homes in 2006 for the first time since 1990. Also, a recent study shows that the hospital environment noise levels have increased by 25%  since 1960 making recovery time more difficult for patients.  In some cases noise levels exceed 90db, which is equivalent to standing 3ft away from a food blender.  Other factors, including federal patient privacy laws and competitive market forces, have increased the need for privacy and noise control in schools, healthcare facilities and hotels.