[Home Theater Network HDAV.com.cn] As a cinema enthusiast, the ultimate goal is of course to have its own set of independent audio-visual rooms. Recently, there are more and more friends in the studio, but in the creation What do you need to pay attention to during the audio-visual room process? Do you know? As the saying goes, good steel is used in the blade, good money is used in the matter, don’t spend a lot of money, but the effect is not done well, then it is worth the loss, I summed up a few Points to pay attention to when doing video room, share it with the friends, I hope to help everyone!
The first link: the ground
Tiles: Easy to cause high frequency piercing.
Stone: same tile
Wooden floor:
1. Spread the board directly on the concrete floor, and the sound effect is similar to that of the tile floor.
2. Pinning the wooden floor into a cavity will have a good absorption capacity below 100Hz, and the low frequency effect of the sound will be very good. If you can put pebbles under the floor, you can just fill the gap that is easy to cause standing waves and resonance, and even the drawbacks of the cavity wood floor can be overcome.
3. The ground keel base layer is 50-100mm high, and the hollow layer can be filled with soft material, but pay attention to the water discharge treatment, and the cork floor is laid on the keel surface (the sound absorption effect in the room is strengthened at the same time);
The second link: the wall
"The front wall is hard, the left and right side walls absorb sound, and the back wall spreads."
1. Front wall: To be hard, you can save a certain low frequency, so that the low frequency can extend forward better.
2. Sound absorption on the left and right side walls: ensure clear sound positioning and pure sound quality
3. Back wall: It can be processed into sound absorption and diffusion. However, it is recommended that the seat is preferably 0.6m or more from the rear wall, and the sound absorbing material is adhered to the diffusion plate, so that the sound can be absorbed and diffused.
4. Corner: It is the strongest place in the standing wave. Special items such as bookshelves and CD stands can help the sound.
5. The surface of the wall is made of wooden sound-absorbing panels, 50mm polyester fiber sound-absorbing cotton is laid on the back, and a 50mm air layer is reserved.
The third link: the ceiling
Ceiling: It is best to have both sound absorption and diffusion
1. Light steel frame plus mineral fiber board: it is effective for resisting excessive indoor reverberation, but has no diffusion function;
2. Use a small arc panel: PVC paper is attached to the downward side of the arc, and the concave side is glued with sound-absorbing cotton. This design not only has the function of absorption and diffusion, but also does not form a cavity for absorbing low-frequency. ;
3. The design of the small arc panel and the outer stretcher is both beautiful and practical.
4. Spread the sound-absorbing cotton on the top of the ceiling and fix it with wooden strips. The pipeline can pass through the ceiling.
5. Since the height of the ordinary residential building is short, the ceiling part adopts the interior design, but it should be noted that any rigid connection with the structure must be isolated by a damping material such as a rubber pad.
The fourth link: the door
Have a certain sound insulation and sound absorption function
1. Increase the weight and thickness of the door, or fill the sound-absorbing material in the middle of the double door.
2. Apply a sealing strip to the door seam.
3. The density of common wooden facades is calculated according to 11kg/m2, and the sound insulation is about 27dB. If the door joints are not specially treated, the sound insulation is only about 15dB.
4. Change the door to a sound insulation door with a high sound insulation, and strengthen the sealing measures. This scheme guarantees the sound insulation of the door, but there is a problem that the door body is too heavy and difficult to open.
5. Adopt "sound gate" type double-layer acoustic door. That is, the wall is thickened, and two wooden door bodies are opened inside and outside, which is equivalent to two-layer doors and an air spring is added, which will make up for the low sound insulation caused by insufficient quality of the wooden door. The two wooden door bodies can be made of multiple layers of different thicknesses and filled with soft sound absorbing materials in the cavity of the door. In order to avoid the anastomosis effect, damping materials such as asphalt paint and fiber can also be applied on the inner side of the plate body. Spray material) to suppress the resonance of the plate. In this way, the sound insulation amount is greatly improved in the case of ensuring the overall decorative appearance.
The fifth link: the window
1. Directly block the brickwork. In this way, the sound insulation is the best, the lack of lighting can be artificial lighting, and the air conditioning system can be used for ventilation;
2. The window is transformed into a two-layer or even three-layer glass window, and the glass and the frame are connected by a rubber strip.
3. Window seam paste sealing strip
The sixth link: curtains
1. The theater should be fitted with dark, heavy curtains or shaded blinds.
The seventh link: other matters
1. Pipe hole: soundproofing
2. Sound absorbing materials: wall cloth, carpet
3. Bookshelf: Place books and CDs. These items are absorbable and reflective to sound waves, which can improve the listening effect.
4. Sound equipment vibration reduction treatment: In order to avoid structural sound transmission, ground and hanging speakers must use vibration reduction measures. A spring hanger damper is added to the upper end of the hanging speaker. The ground speaker should have a separate base (or a certain thickness of the damping pad can be added later, but the effect may be limited)
I can only think so much for the time being, and I thought of writing it later.
More fresh and fun home theater information, please pay attention to home theater network http:// (WeChat: cnhifi), the country's most influential home theater audio player interactive media website.
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