Few people know what noise really is and why it needs to be fought. Each of us has come across loud annoying sounds, but no one thought about how exactly they affect the human body. In this article, we will analyze noise and its varieties. In addition, we will discuss exactly how 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 perforator, and the howl of a neighbor's dog, and many other factors. So what exactly is noise? It cannot be clearly defined. Noise is commonly referred to as annoying, disturbing sounds that irritate a particular person.
Actually, noise is, first of all, sound. Let's take a closer look at what types it is.
Varieties of noise. Percussion sounds
Few people know what types of sounds exist and what air isnoise. However, it is important for everyone to know this in order to understand exactly how to deal with this or that species. There are three types of noise:
- air;
- drum;
- structural.
Impact noise occurs as a result of mechanical influence. It reaches our ears with the help of an overlap. For example, from the floor to the wall and from the wall to the hearing aid. Such noise may be the steps of a neighbor on the floor above, or the jumping of his child.
Airborne and structural noise
What is airborne noise is known to every resident of an apartment building. If you can't sleep because your neighbor likes to watch TV or listen to the radio loudly at night, then you've encountered this type of noise. As you may have guessed, sound waves in this case are transmitted through the air, and, unfortunately, it is almost impossible to get rid of them.
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 propagates over a long distance.
Effect of noise on the human body
High-frequency sounds daily have a negative effect on human he alth and household appliances. Few people know how noise affects our body and what the signal-to-noise ratio is. Some are comfortable with the noise, while others are dissatisfied with it. A huge role is played by the nature of high-frequency sounds and their periodicity.
Noise negatively affects absolutely any living organism. As a result of interaction with it, a person can develop diseases.cardiovascular and nervous systems. When the hearing aid perceives high-frequency sound, a person's pulse changes, blood pressure changes, and blood circulation worsens.
Scientists have proven that a person who is constantly exposed to noise has a risk of developing diseases of the auricle.
What is signal to noise ratio?
As we said earlier, high-frequency sounds negatively affect not only the human body, but also electronic devices. Few people know, but high sound waves can cause poor phone or internet connection. To understand why this is happening, let's look at signal-to-noise ratio in more detail.
Signal-to-noise ratio (often referred to as S/N or SNR) sets the strength of a data signal. If the level of sound on the channel is high enough, this may cause a decrease in the speed of the Internet or the quality of the connection.
Few people know why it is forbidden to use mobile phones on the plane. This is due precisely to the interaction of sound and signal. A working mobile phone can generate an excessive amount of noise, which will cause the aircraft to become inoperable. Communication equipment can cause a plane crash. We recommend that you always turn off your gadgets on board the aircraft so as not to endanger your life.
The difference between sound, noise and vibrations
Not everyone understands what sound and noise are. Statistics show that almostevery second inhabitant of our planet believes that this is the same thing. Is that right?
It is customary to call sound everything that our hearing aid recognizes. Noise is those sound vibrations that bring discomfort to one person or a group of people. It includes all annoying sounds, such as, for example, the barking of a dog, the ticking of a clock and clicking a pen.
We have already figured out the classification of sound, but what are noise and vibration? What is their difference? Perhaps vibration is the most mysterious sound. It can only be felt when in contact with a vibrating object. This sound causes irritation of nerve impulses. Vibration can provoke a deterioration in the general condition of a person.
White and industrial noise
Perhaps every worker in a large industrial plant knows what industrial noise is. This is a wide 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 aids.
We have already found out that high-frequency sounds bring us not only discomfort, but also he alth problems. Can they be useful? Does everyone know what white noise is?
White noise is a sound in which the waves are evenly distributed. It is quite varied. To himinclude the sound of a vacuum cleaner, hair dryer or water flowing from a faucet. Recently, many mothers all over the world have been using white noise to soothe their baby. Surprisingly, it really works. If your child does not fall asleep well and is constantly naughty, then turn on the sound of a waterfall for him. This sound restores the nervous system. You will be surprised, but the child will instantly calm down and fall asleep.
Noise level
We have already found out what noise is and what types it comes in. Today, a large number of people live in apartment buildings. Every day, each of them is faced with 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 non-compliance with the law, the offender will be required to pay a fine. Does everyone know what the noise level is and what is its permissible norm?
According to the law, the permissible noise level in the evening is 40 dB. Most people are concerned about the question of what to do if the neighbors are noisy during the day. Unfortunately, the daytime sound level has not been set. In case you do not like the loud neighbor's TV that he watches during the day, then you just have to put up with it.
What is noise, "new" mothers know firsthand. The level of children's crying is 70-80 dB. Not sweet and motorists. The horn sound level is typically over 100 dB. By the way, noise over 200 dB can cause a gapeardrums.
Prolonged exposure to noise. Prevention of ear diseases
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 this will require a lot of time and effort.
Another serious disease that occurs from high frequency waves is noise disease. 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 experiencing these symptoms, we strongly recommend that you contact a specialist immediately. The sooner you do this, the less likely it is that over time you will have complete or partial deafness. Usually, patients turn to the doctor late and therefore the noise disease is not treatable. Only in some cases, specialists manage to restore at least half of the auditory capabilities.
To protect yourself, in case of constant contact with noise, you must undergo an annual medical examination by a specialist. This will not only detect the problem, but also deal with it without consequences. To be less susceptible to high-frequency sounds, it is necessary to wear ear protectors. Earplugs are the most common type.
If you work in an industrial environment where noise levels typically exceed 90 dB, it is recommended that you purchase high-security noise protectors. 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, we recommend installing soundproofing. With it, you will forever forget about the existence of a neighbor's TV.
Summarize
Each of us knows what constant noise is. Unfortunately, we face them every day and it is almost impossible to protect ourselves from them. In this article, we found out their varieties, as well as exactly how they affect our body. We recommend avoiding high-frequency sound waves, and if you work in a constant noise environment, use noise suppressors. Stay he althy!
