Friends who follow and like movies will immediately rush to the cinema every time a blockbuster is released. Whether it is 3D stereo surround sound or Dolby Atmos, it can meet the needs of movie fans for the audio-visual effects of blockbusters. If you have enough space at home and a sufficient budget, it would be a good idea to build a home video room. But you need to know something about sound insulation, otherwise it will be too late when the neighbors come to your door. In order to avoid the embarrassing situation where one person is happy and everyone is sad, I have specially compiled some strategies, hoping to help you!

Home audio-visual rooms are first divided into soft-tuned space and hard-tuned space. A soft space refers to floors, ceilings, and walls made of plywood, gypsum boards, or wooden boards. If the ceiling, floor and four walls are made of reinforced concrete or bricks, it is a hard space. Generally speaking, a soft-tone space is better than a hard-tone space. Because the hard-tuned space cannot absorb too much high frequency and mid-low frequency, the music will feel too harsh or too oppressive when played. Soft-toned spaces are more suitable for listening to music. Friends who like to listen to music can follow this direction when decorating indoor soundproofing.

Roof Sound Insulation Strategy

First, make wooden keels on the wall, leave a space of about 50mm in the middle, fill it with sound-absorbing cotton, seal the outside with wooden boards, and then cover the wooden boards Attach sound-absorbing panels. It should be noted that all joints in the reserved middle part must be sealed with sealant.

Corner sound insulation strategy

Low-frequency absorption is a big problem, and wall corners are the key to low-frequency absorption. Set up triangular low-frequency traps between the side walls and fill them with polyester fiber sound-absorbing cotton. What needs special attention here is that the sound-absorbing cotton in the low-frequency trap is different from the filling in the front wall. High-density sound-absorbing cotton must be used to effectively absorb low frequencies.

A sound-absorbing board is set up between the top walls. The cavity principle is used inside. At the same time, a cavity is also formed between the sound-absorbing board and the wall, which absorbs sound energy through multiple reflections.

Soundproofing strategy in doors and windows

The most difficult thing to deal with when it comes to soundproofing a home audio-visual room is the doors and windows, which will transmit outdoor sounds in and indoor sounds out, especially It transmits low frequencies farther.

Sound insulation strategy for windows

Usually double-layer windows are used. You can keep the existing window and add another window. The gap between two layers of glass is at least 750px

. It would be better if some sound-absorbing measures could be taken during this interval. If double glass doors are not suitable, the easiest way is to add some heavy curtains to the windows, which not only soundproof but also block light. Finally, other sound-absorbing measures are also indispensable. Thick carpets, fabric sofas, hanging paintings, etc. can all improve the sound-absorbing effect.

Front wall sound insulation strategy

Independent audio-visual rooms are basically picture frame screens. If a sound-transparent screen is used, the first three speakers, the left front speaker, the center speaker, The front right speaker is behind the curtain. That is to say, a shape is to be made on the front wall, and the depth is determined by the thickness of the speakers and curtain. Three wooden frames should be left in this modeling cavity for embedding the speakers, and the surroundings should be filled with polyester fiber sound-absorbing cotton to absorb the sound reflected backwards and avoid mixing with the direct sound, causing the sound to be not clean enough.

Side wall sound insulation strategy

What we need to deal with here is the first reflected sound from the speaker. Why absorb the first reflected sound? If there are too many first reflected sounds, the positioning will be unclear and the sound will sound too noisy. So be sure to suck it. How to absorb sound? It is not necessary to absorb sound from the entire wall. It only needs to absorb sound approximately halfway between the speaker and the listening position. This sound-absorbing area must be at least 1-1.5 meters wide and two-thirds of the height of the wall. . Common sound-absorbing materials include mineral wool, glass wool, and polyester sound-absorbing cotton.

Polyester sound-absorbing cotton is better and can be made into a soft package. However, please note that do not think that nailing wooden boards can absorb sound. The wooden planks have a flat surface, no different from the original wall. The board itself is very hard and is no different from the wall. It will not absorb sound.

When doing sound insulation, adding some diffusion boards appropriately can make the sound band distribution more even. For those who want to build a video room, diffusion boards are even more important!

In addition, you also need to buy a cannon. Pads can not only improve the sound quality, but also reduce interference to the downstairs. You can buy professional gun pads, or you can use granite + shock-absorbing pads. The cannon is placed on the granite, with a shock-absorbing pad under the granite, and then carpet. The sound quality and impact on downstairs will be significantly improved.