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About acoustics
The world of sounds has a great affect on the welfare of people.
Spaces suffering of disturbing echoes and noises have many negative effects. The acoustics of a space can
be improved and controlled, so it is very important to pay attention to these things. Good acoustics is very
important both in public premises as well as in private homes.
Reverberation
A reverberation, or reverb, is created when a sound is produced in an enclosed space causing a large
number of echoes to build up and then slowly decay as the sound is absorbed by the walls and air. RT60 is
the time required for reflections of a direct sound to decay by 60 dB below the level of the direct sound.
When the reverberation time is short, the previous word of the speaker abates until the listener hears the
next word. This makes the speech well-understandable. When the reverberation time is longer, it is more
difficult to understand speech clearly. This makes people to raise their voices or for example watch the
television lauder. This leads to even noisier working or living environment.
Noise reduction
Materials used in the room have a great effect on the acoustics. Surfaces that are both hard and well sound
reflecting do not reduce i.e. absorb the noise. Softer materials absorb the sound waves and reduce
effectively the disturbing echoing sounds. The acoustic solutions should be carried out in a way that on the
opposite side of the hard surface there should be soft material.
Absorption class = noise reduction classification
There are 5 classes (A, B, C, D and E) according EN ISO 11654 standard. The noise reduction is being
measured between frequencies 200 – 5000 Hz. Products that belong to class A have the best noise
reduction capability.
Soften Acoustic Panels belong to the best class A with the acoustic filling inside. Even without the acoustic
filling the panel reaches class C.
Home environment
Even though people spend most of their spare time at homes, quite seldom efforts have been made to
improve the sound environment of private premises. Now that more and more stone and concrete homes
are being built with high rooms and minimalistic interior design, more and more attention has been paid to
the existing acoustic problems. With Soften products it is easy to solve acoustic problems at homes.
Working environment
Acoustics has a great affect on the physical and mental welfare of the employees in offices and working
places. Good acoustics improves the concentration and communication in the office. It boosts up the
capacity and working efficiency, milds down the stress and helps the employees to get on well at the office.
That is why the working environment should be well planned acoustically.
Landscape offices and flexible working spots create challenging situations concerning acoustics. One of the
biggest problems in landscape offices is the disturbing background noise. It lowers the productivity and
efficiency, causes tiredness and creates a great amount of negative after-effects. The employees get
disturbed of the background noise and noises coming outside. The worse disturbance is the talk of the
fellow workers.
The noise level can be lowered by adding noise absorbing material and by planting it into right spots. When
the noise level is brought down, people do not find it necessary to race their voices and without realizing it
they start to talk with lower voices. This reduces the background noise and the acoustic environment
improves considerably.
Acoustic Absorbtion Report.pdf
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Soften Oy Pajakatu 4C, 20320 Turku, sales(at)soften.fi
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