Home theater renovation is very important

TV is in the middle

Director Song Guangsheng of the Indoor Decoration Association of China Interior Decoration Association believes that the room installed in the home theater must have at least 16-20 square meters in order to play the sound of the theater. The diagonals of current 25-inch, 29-inch, and 33-inch color TVs are approximately 63 cm, 73 cm, and 83 cm. According to the best viewing distance of 3 to 4 times the diagonal, the best viewing distance of these three sizes of color TV is about 1.9~2.5m, 2.2~2.9m, 2.5~3.3m. Considering that the distance between the pair of main speakers in front should be 2~3m, and the TV and speakers should be properly spaced from the wall, so the appropriate room size can be selected.

If it is a square room, the color TV can be placed in the middle of any wall; if it is a rectangular room, the color TV should be placed in the middle of the narrowest wall. In addition, the brightness of the TV should not be too large. Many people use curtains when they use a home theater to ensure the effect and prevent outdoor light interference. But the correct way is to open the curtains and relax your eyes after watching it for a while.

Speaker placement tips

In order to get a better hearing effect, the placement of the speakers is also very important.

The front speakers should be placed in the L, R, C: L, R on both sides of the TV, 2-3 meters apart, C with a small anti-magnetic speaker placed on the TV, so as to avoid the influence of the color of the TV. Small C speakers can also be placed in the TV cabinet (of course, the direction of the speaker's sound radiation cannot be blocked).

The surround sound box should be placed on the left and right sides of the viewer. The sound axis of the speaker points to the viewing area, and the position can be appropriately higher. This can reduce the effect of the front main speaker and the rear surround sound to enhance the surround sound space. effect.

As for the ultra-low speaker, there is no fixed position in principle, but it should not be placed casually. To prevent the subwoofer from resonating with the resonant frequency of the room, the subwoofer should generally not be placed near the midpoint of the symmetry between the room's facets. Generally can be determined by trial (audit audition).

Song Guangsheng pointed out that the speaker is still placed in a ring shape, and the subwoofer can be placed next to the TV, which makes the sound more realistic. At the same time, it is very important to do sound insulation, otherwise it will affect the rest of family and neighbors. Therefore, it is best to choose quality soundproof windows and doors. At the same time, we must do a good job of indoor sound absorption. In a home theater room, use less glass or smooth decorative materials, and do not use tiles.

Room ventilation is essential

Finally, we must pay attention to air quality. In order to pursue the realistic sound effects of home theaters, it is impossible for ordinary people to open windows when watching TV or listening to music. However, staying in such a room for a long time is prone to dizziness and nausea. Therefore, when you do not need a home theater, you must open the window to breathe. In addition, you can also equip some air purification equipment, such as air purifiers or fresh air switches.

special reminder

Too many smooth surfaces can cause reflections, the sound becomes cloudy, and the dialogue becomes blurred. At this time, you can put a carpet on the floor or hang some sound-absorbing materials to improve it. If you can choose a room, avoid the square or the size of one side is just twice the size of the other side of the room, those can make the sound deteriorate due to resonance.

Place the chair where the surround speakers are installed as far as possible in the middle. You can place the speaker in the corner of the room, increase its bass through the ceiling and walls, and sometimes make the bass too strong.