How to prevent low frequency noise in the home home ?

Low-frequency noise refers to sounds with frequencies below 200 Hz (octaves). There are five main types of low-frequency noise sources in residential areas: elevators, transformers, water pumps in high-rise buildings, air conditioners (including cooling towers) and traffic noise.

The sound that ordinary people can hear is between 20Hz and 20000Hz, below 20Hz is infrasound, and above 20000Hz is ultrasound. There are compressors, exhaust fans, blowers, cooling towers, engines, pumps, conveyor belts, boilers, air conditioners, transformers, washing machines, refrigerators, automobiles, iron bridges, tunnels, eruptions, thunder, wind, etc. All noise can be harmful to the human body, although the direct physiological impact of low-frequency noise is not as obvious as that of high-frequency noise, which has a long-term impact on human health.

However, the hazards of this low-frequency noise have not been paid enough attention to. The following conclusions can be drawn from the scientific research of domestic and foreign experts, and from the investigation and analysis of workers exposed to low-frequency noise on the site of production enterprises. With the rapid development of industry, national defense and science and technology, the impact of noise and low-frequency noise on the environment has attracted the attention of all sectors of society.

Infrasound is widely present in the environment of human existence, although it is not subjectively felt by people, but its impact on the human body is more serious. According to research data, infrasound has different degrees of damage to various organs of the human body, and even reaches irreversible damage, which is more serious than noise damage. So far, there have been many studies in this area abroad, but the research in China has just started and the research is not deep enough and systematic, so we should pay enough attention to it, so as to provide protective measures to achieve the purpose of reducing damage.

The main sources of low-frequency noise in the city are: elevators, transformers, air conditioners (including cooling towers) and traffic noise. Low-frequency noise has a strong penetrating power on buildings"Mianli"will bring to the listener"Internal injuries"。

However, since the decibel level of this sound is not high, it is not illegal according to the detection standard. <>

With the development and expansion of cities, noise problems are becoming more and more serious. Road traffic, markets, bottom merchants, etc. are all noisy. As people pay more and more attention to health, how to avoid noise pollution is also a problem that many people are very concerned about, and they have encountered the legendary low-frequency noise.

To find its sound source, it is difficult to say, and easy to say. I'm a professional in this field, and I'll suggest a method for you, which we often use. It's cheaper and simpler.

Borrowing or a stethoscope, sticking to the wall, the direction of low-frequency noise is different from the vibration frequency of other directions, and the intensity will be higher, with this method, it is more convenient and quick to find the sound source. Usually, our professionals use the method of listening with their ears against the wall, but it is difficult for ordinary people to grasp this kind of judgment method, so it is better to use a stethoscope to find sound positioning. <>

1. If this noise can be determined to be caused by the water pump, it is difficult to prevent it from being conducted through the wall, but if it is airborne, it is recommended to use double-layer or multi-layer glass windows, which can play a certain role in sound insulation.

2. When choosing household items, try to use soft materials, such as soft beds, soft sofas and soft walls, which can play a role in buffering and weakening.

1. If there is low-frequency noise indoors: indoor refrigerators, air conditioners, transformers, etc. can produce low-frequency noise, if it is an electrical fault should be repaired, if it is because of vibration, it should be taken to pad rubber pads, screw fixing, stable placement and other methods to eliminate the sliding ridge and remove low-frequency noise.

2. If it is a low-rebate coarse frequency noise coming from the outdoors: take corresponding measures to reduce the noise according to the characteristics of the noise source. There are 5 main categories of low-frequency noise sources in residential areas:

Elevators, control boxes leak transformers, water pumps in high-rise buildings, air conditioners including cooling towers) and traffic noise. Low-frequency noise is mainly divided into structure-borne sound, airborne sound and standing wave according to the propagation route.

3. For structural sound transmission, shock-absorbing measures can be added when installing elevators, transformers, water pumps, etc., and even transformers and water pumps can be installed outdoors; For airborne sounds, "ventilation and soundproof windows can be installed on the windows of the house". This only reduces the amount of low-frequency noise, but does not eliminate it completely.

Summary. Hello 1The home wall can be soundproofed when decorating, and you can choose soundproof felt, sound-absorbing cotton and gypsum board to make a soundproof wall, or use professional soundproof materials.

2.If the sound insulation effect of the floor is too poor, the sound insulation process of ground floating should be used when paving the floor tiles, which can greatly reduce the sound transmission of the floor slab. Remedies after renovation:

Carpeting the floor can also have a noise reduction effect.

3.Choose professional soundproof windows. 90% of the external noise is transmitted from doors and windows outdoors, and the installation of professional soundproof windows can effectively block 70%-80% of noise intrusion.

4.Pay attention to the sound insulation of entrance doors and interior doors. Choose a good quality fireproof and soundproof door to enter the house, which can isolate about 30 decibels of noise.

Indoor doors choose doors with silent technology, especially for families with the elderly and children, you should pay attention to the sound insulation effect of indoor doors to reduce the mutual influence of family life.

5.The exterior balcony is soundproofed for walls and balcony windows, which not only prevents outdoor noise from entering the building, but also plays a role in thermal insulation.

How can I reduce indoor noise at home? What are some ways to reduce noise?

Hello, I'm sorting out the answer to your question, so please wait a minute

Downstairs is the song hall, I am the sixth floor, how can I reduce the noise.

Hello 1The home wall can be soundproofed when decorating, and you can choose soundproof felt, sound-absorbing cotton and gypsum board to make a soundproof wall, or use professional soundproof materials. 2.

If the sound insulation effect of the floor is too poor, the sound insulation process of ground floating should be used when paving the floor tiles, which can greatly reduce the sound transmission of the floor slab. Remedies after renovation: Carpeting on the floor can also have a certain noise reduction effect.

3.Choose professional soundproof windows. 90% of the external noise is transmitted from doors and windows outdoors, and the installation of professional soundproof windows can effectively block 70%-80% of noise intrusion.

4.Pay attention to the sound insulation of entrance doors and interior doors. Choose a good quality fireproof and soundproof door to enter the house, which can isolate about 30 decibels of noise.

Indoor doors choose doors with silent technology, especially for families with the elderly and children, you should pay attention to the sound insulation effect of indoor doors to reduce the mutual influence of family life. 5.The exterior balcony is soundproofed for walls and balcony windows, which not only prevents outdoor noise from entering the building, but also plays a role in thermal insulation.

Hello, you can take the following methods: 1. Install the sealing strip.

Some windows are not soundproofed, because of their poor sealing, can be solved by installing sealing strips, and this method is low cost, easy to install, and it is used in the place where the gap is larger, then the noise of the part can be blocked from entering the room.

2. Install soundproof curtains.

Installing soundproof curtains is also a good way to insulate sounds, and there will be a slight gap between soundproof curtains of different materials, among which flocking curtains have the best effect; It is to isolate part of the noise by increasing the sound transmission medium, so as to reduce the noise decibels, and the sound insulation volume of soundproof curtains is generally in the range of 6-15 decibels.

3. Paste window sound insulation film.

It has the functions of sound insulation, heat insulation, explosion-proof, etc., and the high-performance interlayer sandwiched in the middle of the film also has visible light transmittance performance, so it will not block the visible light transmittance and can maintain a clear line of sight.

How can I reduce indoor noise at home? What are some ways to reduce noise?

Hello, you can take the following methods: 1. The window with a part of the sealing strip is not soundproof, because its sealing is not good, it can be solved by installing a sealing strip, and this method is low in cost, easy to install, and it can be used in a place with a large gap, it can block part of the noise from entering the room 2, install soundproof curtains Installing soundproof curtains is also a good soundproof method, and there will be a slight gap between soundproof curtains of different materials, among which flocking curtains have the best effect; It is to isolate part of the noise by increasing the sound transmission medium, so as to reduce the noise decibels, and the sound insulation volume of soundproof curtains is generally in the range of 6-15 decibels. 3. The window sound insulation film has the functions of sound insulation, heat insulation, explosion-proof, etc., and the high-performance interlayer film sandwiched in the middle of the film also has visible light transmittance performance, so it will not block the visible light transmittance and can maintain a clear line of sight.

Downstairs is the song hall, is the noise in my house coming from the walls?

Walls and windows are capable of transmitting sound.

According to a survey conducted by relevant agencies, about 72% of urban residents report that urban life is "too noisy", and even private residential spaces are plagued by noise from all sides. The noise includes urban traffic noise, industrial noise, construction noise, social life noise, etc. So, how should an ordinary home environment be soundproofed and noise reduced?

This article recommends that you take the following measures to improve sound insulation and noise reduction. (From the sharing of Tang Gong of the **** Engineering Department of Hubei Boyin Acoustic Technology).

1) Door and window sound insulation and noise reduction.

Doors and windows are the weak link of sound insulation, and they are also the key objects of sound insulation and noise reduction. Double-glazed windows with cavities in the middle and hollow double-glazed doors are ideal solutions, and in terms of airtightness of door and window structures, the use of high-quality rubber strips and plastic sealing accessories will also greatly improve the sound insulation effect of doors and windows.

2) Sound insulation treatment of the wall.

The soundproof structure of sound-absorbing cotton + soundproof felt. The soundproof wall of the system is to frame the keel on the foundation wall, which is filled with environmentally friendly sound-absorbing cotton, plus two layers of gypsum board, and a layer of soundproof felt is added in the middle of the gypsum board.

3) Soundproofing of the floor.

Taking into account sound and vibration insulation, the floating floor with universal acoustics is adopted. Add sound insulation and shock absorption pads to the concrete floor slab, and then make a concrete floor layer of a certain thickness, pave the floor, and use sound insulation pads on the wall near the floor to enhance the sound insulation performance.

4) Acoustic treatment of ceilings.

The sound insulation treatment of the ceiling can be made of sound-absorbing cotton + soundproof felt, which combines sound absorption with sound insulation. The practice of soundproof ceiling is to install a vibration-absorbing hook under the ceiling, tie the keel, fill it with environmentally friendly sound-absorbing cotton, and then two layers of gypsum board, and sandwich soundproof felt in the middle.

With the acceleration of people's pace of life and the pursuit of quality of life, sound insulation and noise reduction has become one of the indispensable home decoration projects for many families.

Put more points in the house. Wood panel furniture, solid wood furniture, has some sound insulation. There are only two tigers, Peng Shuanghu, and the door hits the wall, the letter wants to ring a little, and the window has to buy that kind of sound insulation. Glass with good sound insulation.

If you want to reduce the noise in your home, you can buy a special silencer or add some sound insulation panels. This will reduce some of the noise in the room.