Doctors and environmentalists are sounding the alarm: the noise load and its harmful effects on humans are growing. An avalanche of unwanted sounds interferes with normal work and rest, negatively affects the nervous and cardiovascular systems, and hearing. How to protect yourself from aggressive noises?
Instructions
Step 1
The human hearing aid perceives sounds in the range from 20 to 20,000 hertz. Everything from above is ultrasonic vibrations of waves. In everyday life, it is customary to measure the intensity of sounds in decibels. T. N. The "pain threshold" for the ear is about 130 decibels.
Step 2
Various noises can irritate hearing, especially at night: air conditioners, fans, various industrial technical devices, construction equipment, passing vehicles. According to the norms, the noise level in the premises during the day should not exceed 40 decibels, and from 23.00 to 7.00 in the morning - 30. Normal conversation, quietly turned on music is about 40-45 decibels.
Step 3
Alas, it is problematic to insure against "unauthorized" noise: the hum of planes, the roar of sirens, the claps of fireworks, the din of dinners at neighbors' are uncontrollable and unpredictable. However, you can protect yourself from excessive acoustic pressure in certain noise environments.
Step 4
Note to yourself: noises constantly surrounding people (for example, in a home) are of a different nature. The usual noise of apartment buildings is the so-called "airborne noise": speech, music, TV and radio sounds, barking dogs. "Impact noise" - sounds that occur when a noise source directly affects the structure of a building. "Acoustic noise" appears as an echo and is characteristic of empty rooms. Absorbed by furniture, carpets, and other interior items.
Step 5
Effectively "air" and "shock" noises can be extinguished only by finishing the premises with sound-insulating and sound-absorbing materials. The process is costly: soundproofing of both the ceiling and walls is required. Sometimes it is preferable to take care of the sound protection of the floor of the neighbors upstairs than to plan work with your ceiling.
Step 6
The following materials have sound insulating properties: concrete, expanded clay concrete, brick, gypsum. Among the noise-absorbing materials are cork, basalt wool slabs, other mineral fibrous materials, porous rubber. Due to its high density, autoclaved cellular concrete combines the properties of both sound insulation and noise absorption. The small air bubbles of a closed structure contained in this material allow it to effectively absorb and damp sound waves.
Step 7
To make the apartment quieter, check all possible channels for the propagation of noise from neighbors. These can be flaws in construction work: poorly sealed openings for laying wires, gaps between the door and the door frame, niches in hard-to-reach places in the bathroom, ventilation window designs. Experts will tell you which cement mortars and ready-made building mixtures are best used to fill voids.
Step 8
Installing PVC windows in the apartment will help to get rid of street noise. The experts will explain how to choose for these purposes two- or three-chamber double-glazed windows with a self-ventilation system and a ventilation valve. Multiple layers of sealing between the leaves and the frame are preferred.
Step 9
To protect yourself from noise, purchase personal protective equipment - earplugs. These inexpensive earbuds are the most affordable and simple soundproofing available. Even more reliable are large ear pads (they are also called "mugs") - soft rollers in the headphones.
