There is strength in tranquility – improving of room acoustics quite easily
In our hectic and steadily louder world, the desire for silence is only too easily comprehensible. This applies to the private sphere, but in particular to the workplace. Whether it is in office buildings, kindergartens, schools, sports halls, public administration and public buildings or in certain areas in hospitals – excessive noise is perceived as disturbing and leads to reduced performance.
Creating rooms acoustically pleasant is a great challenge, especially if you are looking at building physics and design trends, like concrete core tempering. The optimization of the audibility in the room, increased speech intelligibility and a low reverberation time are of great importance here.
Some examples why a good room acoustic should not be underestimated:
In office buildings
A lower concentration under the effect of noise is explained by the fact that human beings are struggling to suppress the disturbing noises from the consciousness. This leads to premature fatigue, loss of concentration, headaches, etc. (See “Health in the Office, publisher: VBG, p. 17).
A sound event turns into a noise when it affects a person in his physical, mental or social well-being. Noise leads to lower concentration, which can easily lead to mistakes. If the noise is ongoing, the stress is significantly increased. (See “Gesundheit, Stress im Betrieb“?) Published by: Bundesanstalt für Arbeitsschutz und Arbeitsmedizin, pp. 24-25)
Noise leads to increased strains on carers and children, which becomes evident in learning and health problems.
A poor acoustics disrupts communication, resulting in restricted vocabulary and a more monotonous language with lesser speech rhythm and speech melody. In addition, attention, concentration, and performance are reduced. This can result in a deteriorated language development of the children which again can lead to problems such as dyslexia.
The attendants have to raise their voices, which might lead to vocal cord irritation and they are exposed to a high stress factor. (See “Lärmprävention in Kindertageseinrichtungen“, publisher: Gesetzliche Unfallversicherungsträger der öffentlichen Hand in Nordrhein-Westfalen und der BGW)
Hospital noise has a medical, psychological and social impact on patients and nursing staff.
Noise leads to stress, which can lead to hypertension over a longer period of time. In noisy rooms one can not sleep peacefully. Sleep is essential for a fast and good recovery. Too much noise leads to concentration impairments, a lower frustration tolerance and a lower performance. Shortened communication is also recorded, which is not helpful for nursing staff or patients. A good room acoustics can help patients recover faster and the nursing staff can take care of their work without additional noise nuisance. (See Noise control, Vol. 9 (2014) No. 6 – November)
How can the room acoustics be subsequently improved without reducing the effectiveness of already installed radiant ceiling surfaces?
Room acoustics is increasingly becoming a problem in modern office buildings, since large window surfaces and core-tempered building elements represent predominantly sound-hard surfaces. However, the porous absorbers, which are frequently considered to improve the reverberation time afterwards, have a thermally insulating effect so that the already installed radiant ceiling surfaces can only provide a low heat output to the useful space. Metawell® acoustic panels combine good sound absorption with an excellent thermal conductivity.
How can Metawell® acoustic panels provide better room acoustics?
Thanks to the installation of sound-absorbing Metawell® acoustic solutions, modern work and recreation rooms with pleasant room acoustics can be created, even retrospectively. The advantages of Metawell® acoustic panels:
- adaptation of the reverberation time to the use of space
- improved speech intelligibility
- well-directed sound control or sound diffusion
- uniform sound absorption over the entire frequency range
- above 100 % sound absorption for ceiling elements possible by additional sound absorption on the backside of the panel
- low weight of the panels
- good structural integrity of the panels. Attachments and fittings can be easily implemented
- freedom of design, as any geometries and many surfaces are possible
- good heat conduction and therefore no measurable influence on the cooling and heating performance of concrete core tempering with enough space between ceiling and panel
- good accessibility, as the gap between the ceiling elements and the walls allows easy revision
- lower installation costs, since the surface to be installed is less and the elements can be more easily aligned