Home audio-visual system: generally pay attention to the following five points for sound insulation and sound absorption.

1. The sound of audiovisual system can be realized in many ways: First, reasonable choice of sound-absorbing materials. But also pay attention to the sound-absorbing materials not to spread too much, otherwise it will make the sound dry and lack a round and pleasant sense of space. In the decoration process, wooden floors. Thick curtains, carpets, tapestries and other materials with good sound-absorbing effects are all good choices.

2 Close the doors and windows. By closing the gaps between doors and windows, it is best to change the door and window glass to double layers. Choose a heavy wooden door, preferably 1250px thick, and the gap should be lined.

Audiovisual system

3. Not suitable for using large floor tiles. The carpet can be made locally.

4: There is no cavity ceiling.

5. Try to use soft packs on the wall surface.

The following is a schematic diagram of the sound unit:

0-20 decibels are quiet, almost imperceptible;

20-40 decibels are very quiet, like whispering softly;

40-60 dB normal and normal indoor calls;

60-70 decibels are noisy and damage nerves;

7o-90 dB noise is loud and nerve cells are damaged.

90-100 decibels increase noise and hearing loss;

100-120 decibels are unbearable, temporarily deaf after one minute.

The specific plan of sound insulation and sound absorption in the audio-visual room of the audio-visual system

Seal inspection is the most direct method.

Observe whether the door and window sealing strips are aging, loose or even broken. Otherwise, it needs to be replaced with a new one; if not, just buy it.