Few people know what noise really is and why it is necessary to deal with it. Each of us came across loud annoying sounds, but no one thought about how they affect the human body. In this article we will analyze the noise and its varieties. In addition, we will discuss how exactly loud sounds affect our body.
Noise classification
Perhaps everyone who lives in an apartment building knows firsthand what noise is. This may be the sound of a punch, the howling of a neighbor's dog, and many other factors. So what exactly is called noise? It is impossible to give a clear definition. Noise is usually called annoying, disturbing sounds that cause irritation in a particular person.
In fact, noise is, first and foremost, sound. Let's take a closer look at what types it happens.
Varieties of noise. Shock sounds
Few people know what types of sounds exist and what airborne noise is. However, it is important for everyone to know in order to understand how to cope with a particular species. Three types of noise are known:
Impact noise occurs as a result of mechanical influence. He reaches our ears through overlapping. For example, from floor to wall and from wall to hearing aid. Such noise can be a neighbor’s steps higher or his child’s jumps.
Airborne and structural noise
What is airborne noise, is known to every resident of an apartment building. If you cannot fall asleep because your neighbor likes to watch TV loudly or listen to the radio at night, then you are faced with this kind of noise. As you might have guessed, sound waves in this case are transmitted through the air, and, unfortunately, it is almost impossible to get rid of them.
The structural noise can be attributed to the sound of a neighboring perforator. Such noise arises as a result of the interaction of the source and the structure and spreads over a large distance.
The effect of noise on the human body
High-frequency sounds daily negatively affect human health and household appliances. Few people know how noise affects our bodies and what the signal-to-noise ratio is. Some calmly relate to noise, while others cause dissatisfaction. A huge role is played by the nature of high-frequency sounds and their frequency.
Noise negatively affects absolutely any living organism. Due to interaction with him, a person can develop diseases of the cardiovascular and nervous system. When a hearing aid perceives a high-frequency sound, a person’s pulse changes, pressure and blood circulation deteriorate.
Scientists have proved that a person who is constantly exposed to noise has a risk of colliding with auricle diseases.
What is the signal to noise ratio?
As we said earlier, high-frequency sounds adversely affect not only the human body, but also electronic devices. Few people know, but high sound waves can cause poor telephone or Internet connections. To understand why this happens, let's look at what the signal-to-noise ratio is in more detail.
Signal-to-noise matching (often referred to as S / N or SNR) sets the strength of the data signal. If the degree of sound on the channel is high enough, this can cause a decrease in the speed of the Internet or the quality of communication.
Few people know why it is forbidden to use mobile phones in an airplane. This is due precisely to the interaction of sound and signal. A working mobile phone may generate excess noise that will cause the aircraft to become inoperative. A communications tool can cause a plane crash. We recommend that you always turn off the gadgets on board the aircraft so as not to jeopardize your life.
The difference between sound, noise and vibration
Not everyone understands what sound and noise are. According to statistics, almost every second inhabitant of our planet believes that this is one and the same. Is it so?
Calling sound is accepted absolutely everything that our hearing aid recognizes. Noise - these are sound vibrations that bring discomfort to one person or a group of people. All annoying sounds can be attributed to it, such as, for example, the barking of a dog, the ticking of a clock and the clicking of a pen.
We have already figured out the sound classification, but what is noise and vibration? What is their difference? Perhaps vibration is the most mysterious sound. It can be felt only in contact with a vibrating object. Such a sound causes irritation of nerve impulses. Vibration can provoke a deterioration in the general condition of a person.
White and industrial noise
Perhaps every employee of a large industrial plant knows what production noise is. This is a great variety of sounds that adversely affect the human body. Its frequency is over 400 Hz. Production sounds can provoke many different diseases, among which there is noise disease. Scientists have proven that every second worker in an industrial enterprise has problems with the cardiovascular system and hearing aid.
We have already found out that high-frequency sounds bring us not only discomfort, but also health problems. Can they be beneficial? Does everyone know what white noise is?
White noise is a sound in which waves are distributed evenly. It is quite diverse. It can be attributed to the sound of a working vacuum cleaner, hair dryer or water that flows from the tap. Recently, many mothers in all corners of the world use white noise to calm their baby. Surprisingly, it really works. If your child falls asleep badly and is constantly acting up, then turn on the noise of the waterfall. Such a sound restores the nervous system. You will be surprised, but the child will instantly calm down and fall asleep.
Noise level
We have already figured out what noise is and what kinds of noise it is. Today, a large number of people live in apartment buildings. Every day, each of them encounters different extraneous sounds. Everyone knows that there is a bill that prohibits exceeding the permissible sound level in different regions after 22 and 23 pm. In case of failure to comply with the law, the violator will be required to pay a fine. Does everyone know what is the noise level and what is its permissible norm?
In accordance with the law, the allowable noise level in the evening is 40 dB. Most people care about what to do if the neighbors make noise during the day. Unfortunately, the daily sound level is not set. In case you don’t like the loud neighbor’s TV, which he watches during the day, you just have to reconcile.
What is noise, first-hand know "newly minted" mothers. The level of baby crying is 70-80 dB. Not sweet and motorists. The sound level of a beep is usually more than 100 dB. By the way, noise above 200 dB can cause rupture of the membranes.
Long exposure to noise. Ear Disease Prevention
As we said earlier, prolonged exposure to noise negatively affects the human body. With constant interaction with high-frequency sound waves, the eardrum weakens and may burst. In some cases, it can be restored, but it will require a lot of time and effort.
Another serious disease that arises from high-frequency waves is noise sickness. It is characterized by hearing loss. Its initial signs are ringing and sharp pain in the ears, chronic fatigue and constant headaches. If you find yourself with such symptoms, we strongly recommend that you immediately contact a specialist. The sooner you do this, the less likely you will be to have complete or partial deafness over time. Usually, patients go to the doctor late and therefore noise disease is not treatable. Only in some cases, specialists manage to restore at least half of the auditory capabilities.
In order to protect yourself, in case of constant contact with noise, it is necessary to undergo an annual medical examination by a specialist. This will not only detect the problem, but also cope with it without consequences. To be less susceptible to high-frequency sounds, it is necessary to wear anti-noise. The most common of these are ear plugs.
If you work in industrial production, where usually the noise level exceeds 90 dB, it is recommended to purchase high-level anti-noise. Thanks to them, you can protect your hearing aid and not face its diseases. If you live in an apartment building and your neighbors like to make noise, then we recommend installing sound insulation. With it, you will forever forget about the existence of a neighbor's TV.
To summarize
Each of us knows what constant noise is. Unfortunately, we encounter them daily and it is almost impossible to protect ourselves from them. In this article, we found out their varieties, as well as how they affect our body. We recommend that you avoid high-frequency sound waves, and if you work in an environment of constant noise, use anti-noise. Be healthy!