It is that noise generated by the disturbance of the air that surrounds sound sources and is transmitted to other spaces.
The origine sound waves collide against other surfaces, making them vibrate thus disturbing air around them again. Air-transmitted noise may be reduced by interposing one or more partitions between the source and the receiving room, which may contain materials such as dBsonic SP or dBsonic HM to avoid spreading between rooms through a dock mass system.
It is that noise generated by the disturbance of the air that surrounds sound sources and that is reflected on the surfaces of the room where the source is located, increasing the final power of the sound.
The geometry of the room, its volume, its surface and its decoration influence to either aggravate or minimise the problem. The places which suffer from this phenomenon can solve the problem using dBcomfort HP, Farbe or Scure to decrease the reverb and increase the conditions of acoustic comfort of the enclosure.