08-22-2014, 02:43 PM
There are two types of sound insulation in buildings: airborne and impact.
Airborne sound insulation is used when sound produced directly into the air is insulated and it is determined by using the sound reduction index.
Impact sound insulation is used for floating floors and it is determined by the sound pressure level in the adjacent room below.
![[Image: soundinsulation1.jpg]](http://www.frontdesk.co.in/big/soundinsulation1.jpg)
Sound insulation
Direct sound transmission
Flanking transmission
Overhearing
Leakage
Airborne sound insulation is used when sound produced directly into the air is insulated and it is determined by using the sound reduction index.
Impact sound insulation is used for floating floors and it is determined by the sound pressure level in the adjacent room below.
Sound insulation
Direct sound transmission
Flanking transmission
Overhearing
Leakage