An IIC (Impact Insulation Class) rating references how well a flooring material reduces the impact of sound. When we step across a floor, drop an object or move something across the floor, the movement and effects create sound vibrations that can travel through the floor, subfloor and ceiling of the room below.
An STC (Sound Transmission Class) rating measures the amount of airborne sound energy the product prevents from transmitting from one room to another. Airborne sound like conversations, music, or dogs barking in the room above travels through the floor and ceiling construction to impact the soundscape of the room below.
Sound Absorption Average (SAA) is a test that measures the amount of sound energy absorbed by an object such as flooring, ceiling tiles, fabric or furniture. When designing a commercial or living environment, this test allows you to measure how two different spaces with the same amount of sound energy will differ from one another. How quickly the sound dissipates and how it reflects will change occupants' perceptions of their space.