Whether it be about the most optimal installation of home theatre systems in Noida or acoustical treatments for commercial spaces, Soundville offers comprehensive acoustic solutions for residences, corporates, institutions and more.
Sound absorption forms a very crucial part of acoustic treatments wherein it absorbs the reverberant energy sound created in a space and cannot be used interchangeably with soundproofing. The difference lies in the fact that the main aim of soundproofing is to prevent the transmission of sound energy. However, one thing that remains common is that both make use of specific materials with the ultimate goal to combat sound in one way or another.
Contrary to what many people might believe, almost all materials can absorb sound energy, albeit to varying degrees and extent. Then, what differentiates any other materials from the one used in sound-absorbing? The materials that possess capabilities to absorb most of the sound energy in collisions with them are deemed acoustic materials, which are further designed to display high sound absorption qualities.
Acoustic materials are utilised for acoustic treatments for the purpose of reducing reverberant sound pressure levels in any space and are of different types and materials.
Types of sound-absorbing materials & how they work
The process of sound absorptions, according to scientific explanation, entails the conversion of sound energy into another form of energy wherein three types of sound absorbers, including porous, membrane and resonance, are prominent. The ability of the existing sound-absorbing materials depends on various factors such as the method, frequency, thickness and composition of mounting.
Porous materials usually have a high absorption coefficient and aren’t dense in their make but permeable. Since we already know that energy cann;t be destroyed or created but only transformed from one form to another, the same principle applies to the working of sound-absorbing materials. When soundwaves penetrate the surface of porous materials upon colliding with them and flow through the cellular structure, the frictional resistance converts sound energy into heat energy. Some examples of porous sound absorbers include carpets, fire boards, mineral wool and various others.
Membrane or Plate Absorbers
Contrary to porous absorbers, membrane absorbs are non-porous, impermeable and non-rigid with a solid appearance and a strong presence as the commonly used sound-absorbing materials. Membrane absorbers cause the oscillating system, which is the mass of the front panel and the spring formed by trap air, to transform into mechanical energy whenever sound energy comes in contact with it through collisions. They are found to be particularly effective against bass or low-range frequencies. Windows, wood floors, gypsum boards and more are typical examples of membrane absorbers.
Perforated plasterboard is one common example of resonance absorbers. They are typically used to fix issues related to bass frequencies and combat sound in a more narrow yet defined frequency range. The same principle of membrane absorbers- mechanical oscillation system- is also applicable to resonance absorbers, with its working based on sound pressure.
Different materials can be used to absorb sound waves but with varying degrees of efficiency depending upon one’s budget and requirements. For example, in open spaces in your house, one can always use cushions, rugs, tapestries, blackout curtains and more. Besides these, acoustic partitions and foam panels absorb sound waves through the porous surface and can be added to open space for the same purpose.
Soundville offers acoustic solutions for commercial spaces, houses, institutions, music studios and more, wherein our core focus is to implement acoustic treatment that aligns with your place and requirements. Our comprehensive process includes a thorough analysis of your site to understand its requirements, followed by quality execution using premium products and timely delivery.