Sound and noise are the energy produced when gases, liquids and solids vibrate. Sound formation and propagation in buildings can be of both air and shock origin. Sound insulation is used to prevent sound pollution from these two sources.
• Airborne sound propagation is the noise created by the vibration of sound waves in the air. (Music, animal and human sounds, etc.)
• The sound propagation of shock is the noise produced by touching one object to another. (Sounds of people moving in buildings and sounds generated during construction)