Features of sound-absorbing and sound-proof materials

It is worth starting with the fact that soundproof materials are necessary for high-quality insulation in the room from various extraneous noise. For example, those insulating materials that are aimed at absorbing sound waves are usually used for interior decoration and create suitable acoustic conditions.

As for the volume level, it starts its countdown from the minimum threshold of audibility, that is, from the quietest sound that the human ear can hear. It should be noted that the acoustic environment in the premises is made up of the superposition of direct and reflected sound waves from the surface. It is important to know that the reflected sound wave has a completely different radiation intensity. Almost all acoustic panels can reflect the sound wave as well as absorb it.

If we talk about the types of sound absorption, then the presented acoustic materials can be divided into the following varieties:

• Panels. Such materials absorb sound with the help of the active resistance of the system, which vibrates under the influence of sound waves;
• Porous materials that have a hard skeleton, such as foam concrete, absorb sound due to the effect of friction in the pores;
• Porous materials with a flexible skeleton, for example, mineral wool, not only create sharp friction in the supports, but may also have relaxation losses due to deformation of the flexible skeleton;

A material can be considered sound-absorbing if it has a factor of at least 0.4 at a frequency of 1000 MHz. As a summary, we can say that soundproofing materials are necessary in order to save the room from the effects of noise. They can isolate noise and reduce the speed of sound waves. By giving preference to such materials, you can reduce the noise that can adversely affect your health.

The use of sound-absorbing and sound-proof materials

To date, such acoustic materials have gained great demand among consumers and can be used not only for arranging residential premises, but also for many recording studios, concert halls and other premises in which it is necessary to achieve an appropriate level of acoustics. A huge variety of different sound-absorbing and sound-proofing materials is available, so you can easily choose exactly what you need at an affordable cost.