Nowadays, with the development of technology, the sound insulation effect of karaoke rooms, meeting rooms, and auditoriums is very good to meet the high requirements of customers. When you walk into a singing room, ugly or beautiful, impressive or plain, it always catches your eye, but do you know what materials the designer uses to make those soundproof walls ?

The main acoustic decoration materials include sound-absorbing cotton, composite soundproofing board, polyester fiber board, fabric sound-absorbing board, etc. These materials can be used indoors in cinemas to improve the acoustic environment, reduce noise interference, and provide the audience with a perfect viewing experience.

1. Sound-absorbing cotton

Features: Also known as glass wool material, it can be plain or covered with aluminum foil, PVC glass cloth, or other materials depending on the project. The density can reach 120Kg/m³, and the maximum heat resistance is 300℃.

Function: Absorbs radiant heat, prevents heat transfer, refracts heat downwards into the insulation area, and has the ability to isolate sound and reduce noise They are made of fiberglass and do not contain asbestos chemicals, making them safe to use

2. Composite soundproofing board

Composite soundproofing board is a special decorative material that is composed of two or more layers of different materials, which can effectively isolate external noise. Composite soundproofing panels are usually used on the walls, doors, windows, and ceilings of cinemas. The characteristic parameters of composite soundproofing panels may vary depending on different models and synthetic materials. Generally speaking, its barrier noise level can reach over 35dB, and it also has good fire resistance performance and ultra long service life. Different brands and models of composite soundproof panels have different fire resistance temperatures, including low-temperature fire resistance, room temperature fire resistance, and high-temperature fire resistance. In addition, the composite soundproofing board also has good moisture resistance and water resistance, which can effectively resist external corrosion and erosion, and its service life will be longer.

3. Polyester fiber sound-absorbing board

Polyester fiber sound-absorbing board is an environmentally friendly material composed of overlapping layers of polyester fibers, which has good sound absorption performance and can effectively isolate indoor noise, making the theater environment more peaceful. Of course, polyester fiber sound-absorbing panels also have a characteristic of being very lightweight, easy to install, and affordable, making them one of the best choices in cinema decoration.

There are two types of polyester fiber sound-absorbing boards: Class A and Class B. Class A polyester fiber sound-absorbing board can effectively reduce indoor noise, with a noise compliance rate of over 90%; Class B polyester fiber sound-absorbing panels can effectively block external noise, with a noise reduction performance of over 95%. In addition, polyester fiber sound-absorbing panels can effectively improve indoor insulation performance and fully protect the warmth of the cinema interior in winter.

4. Fabric sound-absorbing board

Fabric soft bag sound-absorbing board is a special type of fiber product that uses a polystyrene sandwich and then covers it on the surface of an ecological board or lightweight board to achieve efficient sound insulation. The fabric soft bag sound-absorbing board not only has good sound-absorbing performance, but also has plastic characteristics that can be changed according to the actual space. Therefore, it is one of the very popular products in cinema decoration.

The thickness of the fabric soft bag sound-absorbing board can reach 30mm, and its weight is relatively lightweight, usually reaching 4-6 kg/㎡. Its sound insulation level is also relatively high. In acoustic experiments, the air sound transmission value of the fabric soft package sound-absorbing board can reach 35-45dB. In addition, it also has good wear resistance, corrosion resistance, and fire resistance, which can be used for a long time and is not easily damaged.