Home theater network () Most audio-visual enthusiasts put audio equipment in the living room at home, and set up a living room theater for the whole family to enter, but it is difficult to do without proper handling. Play the best results of the equipment. However, the non-professional treatment will not only achieve a good auxiliary effect, but may add to the snake.
Here, the principle of making the living room into a listening room with good acoustic performance and a living room with a beautiful decoration and a warm atmosphere is the principle. Several suggestions for decoration are proposed, which can be used as reference for friends who are decorating new houses.
1. Handling of doors and windows (processing purpose: sound insulation, sound absorption and dustproof)
1. A lot of noise enters the room through doors and windows. Good wooden door, after closing the door, the indoor noise level can be reduced (10-20) db.
2. Stick the sealing strip around the door frame to reduce the noise level (14-18) db.
3. If the outdoor sound is noisy, it is recommended to install double-glazed windows.
4. If the conditions permit, aluminum alloy window can be installed to make push-pull type, save space, easy to use, not easy to deform, good sealing, and its performance is better than steel window.
5. If the home has air conditioning installed, the air conditioning duct is the inlet air outlet and the noise inlet; if the TV room antenna is installed, the antenna inlet is also the noise entrance. These pipes should be silenced with extreme interfaces.
6. Curtains, curtains and tapestries are important sound absorbers, and they are more delicate and luxurious decorations. The use of velvet and velvet as curtain material and curtain material can reduce the reflection of sound waves and the resonance of glass windows. The sound absorption coefficient of the velveteen curtain is 0.31-0.47, the sound absorption coefficient of the curtain made by the medium and long fiber is 0.15-0.27, and the double-layer velvet has the largest sound absorption coefficient of 0.69-0.82.
2. Indoor side treatment (processing purpose: sound absorption)
1. Sound insulation and sound absorption on the ground. It is best to lay a carpet, which is ideal for sound absorption and sound insulation. Usually, ordinary Hua fiber carpets are about 0.5-0.71, while the real wool carpet has a sound absorption coefficient of about 0.68-0.82.
2. It is recommended to lay the floor without carpeting. The sound absorption coefficient of wooden floors is about 0.03--0.05. It is not recommended to lay plastic bricks or tiles, and their sound absorption and sound insulation performance is poor.
3. Dispose of the four walls.
Ordinary walls are dry plastered brick walls. The sound absorption coefficient is very small. About 0.02--0.04 can make four walls into wooden walls; or make wooden wall skirts with heights (0.8--1) m, wall skirts. Keep a certain distance from the wall, not less than 4cm, form a cavity between the walls, which can increase the low-frequency sound absorption effect.
The wall should be painted white or sprayed with ash, sprayed with latex paint, colored spray or other paint, and their sound absorption effect is similar.
If you have the conditions, you can wear the decorative cloth on the wall. The wall cloth is suitable for the wall (3-5) cm. This kind of wall cloth can enhance the sound absorption and beautify the living room.
3. Interior furniture layout (processing purpose: optimize acoustic reflection)
1. Overall layout
Many home listening rooms can enjoy music and receive guests, to achieve the unification of audio-visual enjoyment and aesthetics. At present, the height of the ordinary room is relatively low, only (2.4-2.8) m. In order to balance the listening effect, the length and width should be close to 1.7:1. Generally, the area of ​​the listening room is more than 15 square meters, so that when the stereo is reproduced, the distance between the two speakers is about (2-2.5) m, which is advantageous for expanding the stereo image group.
2. Display skills
1 The placement of indoor furniture should strive to be convenient to use and elegant in the living room. When placing furniture, try not to take a symmetrical shape to prevent acoustic dyeing.
2 Do not place objects that cause vibration, such as metal paintings, thin and light shells, etc. Their vibration will affect the sound reproduction effect.
The combination of cabinets, bedroom cabinets, large sofas, etc. in the 3 rooms is very effective in improving the sound absorption effect, especially for improving the low frequency effect. The perforated plate resonator cannot be installed in the general room, so it is not convenient to absorb the low frequency. This shortcoming can be overcome after placing the wardrobe.
4 glass window hanging thick curtains, wall hanging tapestry, floor carpeting, bed cover, etc., can improve the acoustic conditions. The curtains have better transmission performance to low frequencies, while the glass windows have better sound absorption performance for low frequencies, and they have complementary functions.
3. Reverberation time fine-tuning
1 The indoor reverberation time should be controlled within a certain range. If the reverberation time is too long, the sound has tailing, echo, and the sound absorption can be increased by laying carpets, hanging decorative curtains, etc., and even indoor furnishings, dolls, velvet toys, flower pots, etc., can improve the sound absorption effect.
2 If the indoor reverberation time is too short (this situation is less in the general living room), the sound is dry, the reflective surface should be added, and the glass mirror and the picture of the large glass frame can be hung to improve the indoor sound quality. There are still many ways to improve the sound quality. For example, indoor hanging various chandeliers, wall-mounted stickers or hanging crafts, etc., not only beautify the environment, but also improve the reflection characteristics.
3 The bookshelves are placed indoors, and the bookshelves are filled with books and magazines of different sizes, or CDs, analog records, etc. These items are absorbent, reflective, and dispersive to sound waves; Books with different sizes and widths can produce irregular surfaces. For large-area reflective walls that are difficult to handle, try to place the bookshelf and improve the listening experience. In short, through various adjustment measures, people finally hear the sound of the speaker sounding harmonious.
Want to know more about the living room theater, please read these two articles: "Living room theater? Why should the home theater be in the living room?, "The living room theater formation process and precautions", more home theater acoustic knowledge, please add WeChat: cnhifi.
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