Our products use high-quality FiberAcoustic fabrics. The fabrics have been tested in accredited laboratories in accordance with EN ISO 10534-2 standards. We offer two fabrics with different acoustic performance α = 0.91 and α = 0.62. Both available in black and white.
Sound movement in atmosphere and acoustic panels working principle:
What is sound and how it´s measured?
Sound is basically pressure wave movement through air.
An air pressure change which vibrates in atmosphere pressure at certain frequency.
Human ear hears sound at certain parameters. For that is needed certain sound lenght/frequency and some level of sound ”noise”/volume in order to do so.
Sound frequency is measured in hertz (Hz). Sound measurement describes how many times per second sound pressure vibrates in atmosphere pressure that surrounds us.
Sound has low frequency – BASS, sound is at low volume (possible to feel it physically).
Sound has high frequency – TREBLE, sound is at high volume.
Sound ”noise level” in other words sound volume level is measured in decibels (dB). It is so called air pressure deviation in surrounding atmosphere, that we hear in high or low sound volume level changes.
NB! Human ear separates sound from 20 Hz up to 20000 Hz. Solid/understandable human speech starts from 2000 Hz. Normal human speech is around about 60 dB. If You elate it up to 70 dB, then human ear hears sound at double volume.
Sound is classified into three basic groups:
- Low frequency. Sound stays under 20 Hz or is close to 20 Hz. Human is experiencing it in vibrating motion at certain areas in human body and You might not hear any sound at all. It is penetrating and felt physically.
- Middle frequency. Sound stays in between 500 Hz and 2000 Hz.
- High frequency sound. Sound is higher than 2000 Hz. Clearly audible human speech starts from 2000 Hz. For example at 10000 Hz You can hear bird song or breaking class sound.
Sound absorption/dispersion into surfaces and into the acoustic fabric
Sound is pressure wave movement through air.
When sound moves in air and bounces against so called optional surface, then the resistance factor of that certain surface determines if sound waves bounce off/away from the surface or absorbe into the surface.
The higher the surface resistance factor is, the more sound is reflected back into our surroundings and that creates echo effect. Echo is something that 99% disturbs us in normal living condition.
The lower the surface resistance factor is, the better sound absorbes into surfaces.
Sound absorption is creating/generating heat energy
At certain conditions when sound absorbes it transforms into heat energy.
A friction is created when sound moves into acoustic panel and that generates heat.
In order to transform sound into new form of useful energy the sound particles must vibrate at ceratin frequency.
Sound moving through Aikkon Est OÜ´s acoustic panel is captured deliberately to weaken excessive sounds and by-product is energy transforming into new form – heat energy.
Sound absorption capacity into acoustic panel is measured with coefficient ”α” between 0….1.
α = 1.0 (100% absorbed sound)
α = 0.0 (0% absorbed sound)
Sound absorption capacity into acoustic panel depends in what frequency (Hz) sound moves.
Sound that moves in different frequencies absorbes differently into acoustic panels.
Be aware that You can never turn off sound 100% with acoustic panels. Acoustic panels practical purpose is to absorbe excessive sound energy.
In other words it removes sound pollution.
Different sound frequency capturing “α” and air space/insulation needed at installation:
Acoustic panels working principle and purpose
Acoustic panels purpose is to absorb and to disperse excessive sound that reflects – echo.
Or to remove excessive sound (sound pollution) up to maximum point what is possible if the surrounding areas reflect too much sound back from surfaces.
Sound pollution is a common problem that Aikkon Est OÜ´s acousitc panels are solving for You.
It means that in order to live in ”cleaner” living, working, playing and also learning environment one must control, balance, direct and limit excessive sound movement.
First sound moves into acoustic panel through decorative but practical laths that is made from natural wood (oak, pine, spruce, birch – optional) which break up sound waves to loose sound energy. Secondly sound is being absorbed by acoustic fabric.
Thirdly what is still left from excessive sound energy is captured by airspace and/or insulation behind the acoustic panel.
Practical outcome of that process is very useful and green thinking.
No sound pollution / better hearing / extra generated heat energy that stays in Your enviroment.
Sound dispersal/absorption through acoustic panel:
Aikkon Est OÜ´s produced acoustic panels are health and environmentally friendly: