1. The size of the room is divided into soft and hard
Domestic consumers mostly use the living room to make audio-visual rooms, and it is no longer a small number of rooms that can be used alone for the audio-visual room. The room size of the audio-visual room should not be too small, the clearance area should be above 10m2, the size of the audio and video effects will be unnaturally depressed, the equipment placement and viewing distance is not reasonable, the room should be placed in a large sound, the height of the room should be Not less than 2.8m, but not more than 4m, because the ceiling will reflect sound, too high space due to the long arrival time of the reflected sound, easy to cause inaccurate positioning and other issues. The ideal audio-visual room should be rectangular, and the length, width and height of the room also have certain requirements. The proper ratio can reduce the intensity of the medium-low frequency standing wave. The ideal height, width and length ratio are 1:1.618:2.618. . Of course, it is difficult to have such an ideal ratio in reality. Generally speaking, as long as the height, width and length are not allowed to be separated by integers. In addition to the appropriate proportion, it is also necessary to know whether the room is hard or soft, and what is hard to adjust? The domestic rooms are mostly six walls made of brick walls or cement. These hard walls reflect the sound energy. Lord, they are called hard-tuning spaces. Because of the lack of sound-absorbing substances, the hard-sounding sound is too strong and noisy, and the low-frequency will increase. On the contrary, the wall separated by wood and gypsum board, and the room with interlayer between the board and the board is called soft-tuned space. This space can absorb the sound energy of high frequency, medium frequency and low frequency, and the sound load is absorbed. A lot. This kind of space occasionally causes insufficient low-frequency feeling due to excessive absorption, but the high frequency is very smooth. Since the volume of the listening space is the sound reflection load of the six walls in the space, the hard-adjusted space cannot withstand too much volume. Whether it is dynamic, sound field and sound image reproduction can not be compared with soft-tuning space, the ideal audio-visual room should be soft-tuned space.
2. Reduce standing waves and reverberation
The processing of the audio-visual room is mainly to reduce the low frequency standing wave and excessive reverberation reflection sound, the solution is to place the appropriate sound absorbing material. What is a sound absorbing material? Any material that converts sound energy into mechanical energy by vibration or friction energy into heat energy material is a sound absorbing material. Brick walls, wood boards, glass, etc. are all sound-absorbing materials based on vibration. Various mineral wool foams and fabrics are fine-porous sound-absorbing materials.
3. Decoration of the wall of the audio-visual room
The walls of the listening room are generally decorated on the principle that the front wall is hard and the side wall is diffused and the wall is diffused. The decoration in the 5.1-channel cinema room is basically the same. Pay special attention to the space in the listening space. Do not use a thin plate to nail the cavity wall or the separation space. Because the thickness of the thin wood is 0.5cm-3cm, the thickness of 3cm or more is rare. The 3cm plate absorbs 125HZ and the frequency is quite high, with 0.28 absorption rate. The higher the frequency, the lower the sound absorption rate. The thinner the board, the lower the sound absorption of 125HZ, but the higher the sound absorption of 250HZ. In the home decoration, the 2cm board is used to separate the room, and there is a cavity behind the board. The cavity will increase the sound absorption rate, which makes the middle and low frequency less sense and the sound is thinner.
4. Floor and ceiling installation of the audio-visual room
The floor of the repair room is mostly covered with marble, tile or wooden floor. From the material point of view, the wooden floor is most conducive to sound. When the audio-visual room is decorated with wooden floor, as long as the wooden floor is directly and firmly laid on the concrete floor, its characteristics are similar to those of the cement tile floor, and only the reflection effect on the sound wave, the ability to absorb the low frequency. Very low. 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.
Wooden Headphones are a type of headphones that is different from metal and plastic materials. Wooden headphone can let you enjoy the wonderful music. However, Wooden Wireless Headphone has strict standard of select materials. This is more related to personal preferences. If the density of wood is large, the dampen will be lower, it is easier to drive. If the density of wood is small, the ability to isolate noise is relatively weak. Therefore, we need to choose the earphone that suits us according to the sound prefer by our ears.
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