How can I reduce the noise? How to reduce noise

This problem is relatively simple, and there are solutions as follows!

1. Install ventilation holes, this is the most affordable, install a row of ventilation holes between the top of the glass and the frame (professional processing glass is sold in places), which can allow some air to enter the room, and ventilation can be done without opening the window, but there is a disadvantage, that is, this hole is very small and the ventilation effect is poor.

2. I personally think that the best solution is to replace the glass of the window on the road, and install it into a thickened hollow sound and heat insulation glass, the effect is obvious.

3. There is also an auxiliary plan: change the curtains, replace the curtains with heavier ones, and also absorb noise; Laying wallpaper and carpet can have the effect of absorbing noise.

There are 3 ways to reduce noise:

The first is to think of a solution from the noise source, unfortunately, this method is a bit difficult! Unless the municipality re-plans the road.

The second is to start from controlling the transmission path of noise, which can be considered to use sound absorption, sound insulation methods to find a way, like the method downstairs is some feasible methods. The landlord can learn from it!

The third is to consider taking some precautions for the recipient, which is obviously not very applicable.

It is recommended that the landlord still work hard in the second part, install soundproof windows, hang thicker curtains, and usually put a little light ** at home!

It's very troublesome, as long as the window is well sealed, the noise is small, then you can build a compartment.

Coach: Luo Qiong.

Design Ideas Let children understand that noise is also a kind of pollution, and we can start by reducing noise to protect the environment. Cultivate children's hands-on ability, gain knowledge and find happiness in activities. Understand that every child can protect the environment.

Objective 1Generate your child's interest in finding ways to control noise.

2.Develop children's ability to use their hands and brains.

3.Through exploration, guide children to find ways to reduce the noise they encounter in life.

Event Preparation 1Young children already have life experience in music and noise.

2.chairs, tables, cups, bowls, iron buckets, double-sided tape, transparent glue, sponges, cloth strips, cotton, small carpets, waste newspapers and various soft and hard materials; Writing paper and pen.

Activity process 1. Children listen to the noise and introduce the activity.

1.Ask the teaching assistant to hide under the blackboard and use some tools to make noise so that the children can listen attentively.

Prepare some noisy noises, piano songs, and cheerful nursery rhymes, etc., so that children can feel the difference between noise and music.

2.Question: What did you hear?

What are these sounds coming from? How do you feel after listening to these sounds?

What can you do to reduce this noise?

2. Guide children to collide with two items.

1.The teacher has prepared a lot of things today, and I would like to invite the children to try them out, which things make a loud noise when they collide? What things collide with each other and make a small sound? Please record your findings.

2.Group discussion and talk about their own operational activities.

What items make a low noise when they collide with anything?

What items make loud noises when they collide with other objects?

Which do you like to hear? Why?

3. Guide the children to discuss ways to reduce noise in small groups and communicate with each other.

1.Let's use our brains to think about what can be done to reduce some of the noise that is common in our lives.

2.Inspire children to choose their own materials, do hands-on operations, and solve problems.

Activity Extension Let the children find out what noise is in our classroom, what can be solved, and ask the children to do it themselves and express their ideas in action.

The four ways to reduce noise are to replace curtains, glass, carpets, and greening, choosing thicker curtains and double-layer hollow glass can reduce noise by 40%, laying carpets can reduce the noise generated by human walking, and strengthening greening can reduce the noise intensity of the outside world.

1. Replace the curtains

Noise reduction can take the form of replacing curtains. Most of the noise generated outdoors comes from the windows, so replacing the curtains in your home with a thicker type of liquid can block out 20% of the noise, so as to achieve the purpose of reducing noise.

2. Replace the glass

Noise reduction can take the form of replacing the glass. Single-glazing is less effective at filtering noise, and the void between double-glazed insulating glass can isolate 40% of the noise, so replacing the glass in your home with double-glazed insulating glass can reduce noise.

3. Lay the carpet

Carpeting also reduces noise. In addition to the noise that people hear from the outside world, it will also be generated between walking and distraction, and laying carpets indoors can reduce the sound of footsteps and dragging tables and chairs when people are walking.

4. Strengthen greening

Trees can absorb noise from the environment during the growth process, so in order to prevent external noise from entering the room, green trees and flowers can be planted around the community or next to the street to play a role in sound insulation.

Afforestation to reduce noise.

Liu Xingzheng. In cities and towns where the population is concentrated and the transportation, industrial and mining enterprises are developing rapidly, the harm of noise to human beings is becoming more and more serious. According to the data, the noise is below 50 decibels, there is no shadow of the sound of people, when the noise reaches 70 decibels, there will be obvious harm to people, if the noise exceeds 90 decibels, people can not work for a long time.

At present, in many cities in China, there are many environments with noise exceeding 70 decibels, therefore, noise as a public hazard has attracted the general attention of human beings, and various measures to reduce noise have been taken, and afforestation is a good way to kill multiple birds with one stone.

From scientific experiments, it is known that the noise of the park can be reduced by 5-40 decibels, which is 5-25 decibels more than the natural attenuation of the open land at the same distance from the sound source. When the car tweeter passes through the multi-level forest belt composed of lawns, shrubs and trees 40 meters wide, the noise can be reduced by 10-15 decibels, which is more than 4 decibels more than the natural attenuation of the open land; Planting trees on city streets can also reduce noise by 7-10 decibels, and practice has proved that planting green trees and flowers on city streets, open spaces and house courtyards can reduce noise pollution.

From the perspective of the effect of forest trees in preventing noise, the wider and denser the lead forest belt, the better. Scientific research believes that in the city, there should be at least 6 meters wide and 10 meters high forest belt, the effect of noise reduction is more obvious, and the forest belt should not be too far away from the sound source, generally between 6 and 15 meters.

In order to improve the perennial effect of greening noise reduction, evergreen tree species should be selected as much as possible, mainly trees, shrubs, flowers and plants are combined to form a multi-level anechoic forest belt, and the effect will be better.