Measure the sound insulation between two rooms. Do this by generating a sound in a room, and by comparing this sound level with the level measured in a, normally adjacent, room.
Airborne and impact noise are distinguished as follows.
- Airborne noise is sound that is transmitted through the air, such as traffic noise or people talking in the room next door.
- Impact noise results e.g. from footsteps on a floor, which can be heard in the room below.
The process of calculating the the sound insulation may also require that the background noise and the Reverberation Time are measured.