Years ago, because the lucky house was drawing tight bonuses, the computer that gave the company's audio-visual room was sunk for gold coins. In the answer, there were not many computers discussed, but some netizens were interested in the construction of the audio-visual room. At present, the audio-visual room is basically completed. Apart from the leisure time, we share the experiences and lessons learned in the audio-visual room building process and provide interested netizens with some valuable references.
Whether it is in a company office or an individual residential building, the first step in the radiography room is sound insulation. Whether it is listening to music, watching a movie, or singing, there is no certain volume that cannot be ignored. If you do not want to be complained by your neighbor, the property or the uncle of the police come to you, you must take the noise seriously. We spent about half of our money on soundproofing when the budget was tight (only 100,000).
According to the conventional roof, wall, floor decoration order to introduce the sound insulation methods and materials used. Occasionally, I was not at the site during the construction. There were not many pictures taken during the construction process. The pictures marked on the Internet were all found on the Internet.
Decoration method and material purchaseThe first is the roof. The principle of sound insulation is very simple. One is to block the sound with soundproofing material and the other is to reduce the vibration of the roof. The material used for the ceiling is different from the ordinary ceiling.
The keel of the entire suspended ceiling is suspended using this special shock absorber to minimize the transmission of vibrations to the cement roof. The plates used for ceilings are not gypsum boards, but are special damping baffles.
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This plate is a three-layer structure, 16mm thick, looks very light and actually very high density, especially Shen. The entire size is 122cm244cm, two people can barely move. Music is generally not disturbing upstairs. Our roof treatment is relatively simple. It is such a sound insulation board. There is no other treatment on the glass fiber sound-absorbing cotton covered with 5cm thick.
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The roof of the office building is not high. In order not to waste a limited height, we did not cover the concrete beam when the ceiling was suspended. The entire ceiling was actually divided into 6 blocks by the cement beam. However, the cement beam was also treated with a layer of foam cushion (8mm) and a layer of acoustic blanket (2.8mm).
Shock absorber 8mm
Acoustic felt
Acoustic felt - network
The basic sound insulation of the roof is such that the wall surface is a bit more complicated. First hit a dedicated keel
Filled glass fiber sound absorbing cotton
Covered with a layer of acoustic felt
The last layer of blockboard, which can be soundproofed, can also be used as the basis for the next installation of sound-absorbing materials.
Ground noise treatment is more troublesome. Putting music, especially bass-rich music, has the greatest disruption to downstairs, so the soundproofing of the ground is a top priority of the entire project. The floor has been tiled when the office is handed over. If you make sound insulation directly on the tiles, it will be about 8cm higher than the original ground, which is not only beautiful but also a waste of limited space. Therefore, the first step in the soundproofing of the floor is to dig the floor to dig the floor, remove all the limestone layers, and expose the cement floor. After simply finding the right level, the soundproof material can be laid. The following is a schematic diagram. After laying the floor, it is only about one centimeter higher than the original.
The following is a 12mm thick cushion
Shock absorber 12mm
Our ground soundproofing is a relatively simple method. Professional practices are more complicated than this, but the overall height is much higher. Interested users can ask Duan Niang or professional manufacturers to do sound insulation. The final soundproofing effect of our audio and video room is still good. Testing sound, singing and watching movies have never been complained.
After the sound insulation is done, the acoustic treatment of the surface can be done. The purpose is to control the reverberation time and improve the sound field. The original plan was to treat the ceiling of the house and the four walls, and I wanted to make it feel like this.
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Later, because of over budget, the boss changed the plan many times, and had to hang some performance lamps on the roof, so the roof was just sprayed with black paint. After the completion, it was the following appearance. A lot of professional speakers were placed on the front, and some performance effects lights (we were audio companies, audio and video and performance equipment) were hung on the front.
Audio and video room decoration Raiders renderings
The following talk about the use of acoustic materials, we see the largest area of ​​the material is a brown slot sound-absorbing panels, more common sound-absorbing materials to absorb the main low-frequency. It should be noted that only this slot sound-absorbing panel is not enough, and it must have a layer of sound-absorbing cotton inside it to function.
Audio and video room decoration Raiders materials to buy
The box shape is a sound-absorbing soft pack. The surface is made of flax material and the inside is a sponge, which mainly absorbs high frequencies.
Those wooden materials are diffuser plates that spread the middle and high frequencies of sound. Different shapes have different diffusion effects.
The entire back wall of the speaker is a polyester fiber acoustical panel, which is also very common. The curved surface is a low-frequency trap.
Audio and video room decoration Raiders materials to buy
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Polyester fiber absorption panels absorb medium and high frequencies. If you add a layer of sound-absorbing cotton, the low-frequency absorption effect is also good. We do so. So the four walls of the house are actually very thick. See the schematic below
The consequence of the change in the plan is to delay the construction period. In the end, in order to hurry, the overall acoustic treatment plan has been settled without being demonstrated and tested. The final result is not satisfactory. The biggest problem is the use of too many slot sound-absorbing panels, excessive absorption of low-middle-range, listening to music voices weak, low-frequency is always lack of strength and dive, there is no momentum.
Therefore, here to advise the netizens who are preparing to decorate the audio-visual room, the acoustic treatment of the surface must be proved and tested well before construction, but also try to listen to the construction and find the problem immediately adjust the program, otherwise it will be difficult to correct after completion.
device installationAfter the renovation is completed, the equipment can be installed. Some equipment is not yet in place and the cabinet is empty.
Professional equipment is not introduced, and personal homes are completely unused. We recommend the projectors and screens we use, and the results of watching movies are not bad.
There is no problem with the projector itself, and the manual gives a bad review. Fixed the projector hanger when reading the instructions, 120-inch curtain recommended installation distance is three meters five, according to three meters five fixed. Who knows how to find out after the three-meter-five is the nearest distance, the screen is enlarged to the limit barely covered with curtains, obsessive-compulsive disorder can not tolerate.
The place where this curtain needs attention is the long black border at the top, but it can be adjusted. Users with weak hands-on ability must allow the seller to install it.
How long do you see the dark side of the curtain?
The effect of all lights turned off
Write so much, welcome to discuss and discuss.
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