Building acoustics & sound insulation testing
About Building Acoustics
Building acoustics are an important consideration in the design, operation and construction of most buildings, and can have a significant impact on health, communication and productivity. Building acoustics consists of two parts; Room Acoustics which deals with sound propagation in a room and Building Acoustics, which deals with sound propagation between rooms.
Typically, room acoustics is related to the quality of sound, e.g.. concert hall acoustics, while building acoustics is more related to unwanted sound, i.e.. when you want to hear as little as possible of what is going on in adjacent rooms. Campbell Associates supply the complete building acoustics solution to meet building regulations available for sale or hire.
Building regulations Part E require that buildings are to be tested prior to completion in order to confirm they meet or exceed Part E standards.
Approved Document E is split into four sections
E1 – Protection against sound from other parts of the building and adjoining buildings.
E2 – Protection against sound within a dwelling/house etc
E3 – Reverberation in the common internal parts of buildings containing flats or rooms for residential purposes
E4 – Acoustic Conditions in Schools
In building acoustics where we concentrate on the noise level due to what goes on in adjacent rooms (or outside) an important parameter is the sound insulation.
Primarily we want to characterise a wall's ability to insulate rather than the current sound level in the receiving room. This is very much because most countries have regulations on how good the sound insulation should be. The sound source is placed in one room and measured in the adjacent room where we measure the amount of noise coming through the wall.
By correcting the measured level difference in a certain way, we compensate for the effect that the reverberation time has on the sound level in the receiving room.
In addition to testing sound insulation between rooms, many buildings require impact testing using a tapping machine to test sound insulation between floors. Our building acoustics systems test footfall noise transmission measurements in buildings as set out in International and National Standards.