1. The soundproof entrance and exit passages of the bar are designed as glottis. In fact, most bars have only one door. No matter how excellent the sound insulation performance of the door is, the sound waves in the bar will inevitably leak when the guests enter and leave the switch. Therefore, in the design, a soundproof door should be added at a distance not less than 1.5M from the original door, so that the first door is closed when the guest opens the second door, and the sound wave cannot be released.
2, door crack, threshold, door touch to reduce sound leakage. There are too many gaps between the door and the door, which greatly reduces the sound insulation effect of the door. Therefore, it is necessary to use rubber strip to design a closed structure in these parts to ensure that sound waves cannot leak from the gaps through rubber strip compression and air compression deformation.
3. Install a broadband muffler at the exhaust port. Air conditioners and exhaust ports will produce noise during the discharge process. It is necessary to install a compound muffler. On the premise of not affecting the normal exhaust, the low-bandwidth sound wave in the muffler is basically eliminated by providing the most abundant home decoration design and renderings.
4. Sound absorption in the bar: a sound-absorbing soft bag is installed in the bar. The walls, sofas and seats of the bar should use sound-absorbing materials to reduce the sound pressure of the indoor sound field, and at the same time, the volume and tone of the bar can be adjusted to make it more harmonious and pleasant.