Imagine you are entering a sound booth to record a song that you have slaved over to perfect, and now every note is right. As soon as you belt out every word into the microphone a big time producer will be sweeping your single into every store and radio station in the nation and you will be a huge star. Now imagine that as you ready yourself for the first verse to escape your lips, the hammering of the office being redecorated next door fills the sound booth instead of your voice. It would ruin your moment. But this doesn’t happen, because of sound insulation.

Sound insulation is a form of soundproofing, a way to muffle the sounds of an outside area from the inside and vice versa. Technically, materials are chosen to absorb the sound waves that come across them, which basically eliminate any unwanted noises like echoes and reverberation. Not only is this an important aspect of recording studios, but versions of sound insulation are also helpful in stadiums, religious institutions like synagogues and churches, concert halls and gymnasiums. Even certain office space layouts and manufacturing factories require the use of sound insulation to deafen the noise so people can concentrate while working.

It is not just the type of material that makes a difference in noise control, but also the texture and shape of the material. Sound insulation pieces, such as acoustic panels and acoustic curtains can be made of foam, glass, mineral wool, polyethylene, fiberglass, rubber and aluminum composite, to name just a few. In a space like a recording studio where aesthetics don’t matter in comparison to an ideal sound quality, foam may be cut into triangles and attached to the walls in a multi-layered pattern, which causes the walls to create an excellent buffer. However smoother surfaces are often used in offices and concert halls because the space needs to be attractive as well as sound absorbing.