How does a sound absorbing wall dampen the echo?

The process of sound absorption is also the process of energy conversion, the sound-absorbing material and the sound resonate, and when the vibration is rubbed with the adjacent material, the sound energy is converted into heat energy.

1. Batch scraping method.

The sound-absorbing paint is directly batched on the treated wall, and the batch scraping method is the simplest construction method at present, but it is only suitable for painting a certain color of sound-absorbing paint.

2. Spraying method.

With a stone paint spray gun, the muzzle of the gun is perpendicular to the wall and evenly sprayed on the wall (this method is recommended), if two or more colors are required to match the effect, another suction paint is sprayed on the wall before the first spray is dried.

3. Double-gun spraying method.

Use a special double-nozzle spray gun to pour the two colored binders of the suction paint into the spray gun to separate both sides, and the operation method is the same as the above spraying method, but only one spraying can get the two-color effect, which is quite beautiful.

4. Spraying topcoat.

The topcoat is sprayed before the construction material dries, and the colored metal wire is added, and the surface of the paint can be sprayed directly with a colorful spray gun or paint grab.

The main question you didn't mention was what kind of wall, whether it was load-bearing, and what structure. The most effective way is to insulate the sound from the structure, which needs to be cut and reconstructed, which has a good effect.

The common practice is soft packaging (widely used).

Soft package not only has the traditional soft package decoration beautiful, convenient construction and other characteristics, but also maintains environmental protection and excellent sound absorption effect, can improve the sound quality of the best place, home space, to meet the high requirements of the acoustic place, soft package decoration is the perfect pursuit of life for successful people, the embodiment of personality, the symbol of avant-garde design.

At present, the new production methods on the market have changed the process of traditional soft packaging, and overcome the problems that cannot be solved in traditional soft packaging, such as uneven seams, unstraight lines, easy deformation in case of cold, heat and humidity, and large changes in lines that cannot be made. It is also easier to construct than traditional upholstery. The main material of construction is the patented product - soft pack strip, during the construction, the pattern required for the soft pack is drawn on the wall bottom plate, and then the pattern is nailed along the contour line of the pattern, the gap in the pattern frame is filled with foam, and finally the fabric is clamped with the strip.

With wooden decoration materials, the surface should be coated with a layer of white cement can also be said to be (melamine), the construction is not required to be smooth, the process is very simple.

The more common wall sound-absorbing materials are: wood sound-absorbing panels, wood wool sound-absorbing panels, fabric sound-absorbing panels, polyester fiber sound-absorbing panels, etc.

Wooden sound-absorbing panels, wood wool sound-absorbing panels, fabric sound-absorbing panels, polyester fiber sound-absorbing panels, etc., are widely used in the walls of public places such as halls, theaters, recording studios, studios, monitoring rooms, conference rooms, gymnasiums, exhibition halls, song and dance halls, KTV private rooms, etc., which can absorb noise well and prevent strong reflection of indoor sound from affecting the indoor environment.

Wooden sound-absorbing board is divided into two types: grooved wood sound-absorbing board and perforated wood sound-absorbing board, grooved wood sound-absorbing board is a kind of slit resonance sound-absorbing material that is grooved on the front of the MDF and perforated on the back; Perforated wood acoustic panel is a structural sound-absorbing material with round holes on the front and back of MDF.

The fabric sound-absorbing board is made of non-combustible microporous special sound-absorbing surface placed in the plastic or wooden frame, and the outer fireproof sound-absorbing cloth is made, which has the characteristics of difficult fire prevention, no dust pollution, strong decoration and simple construction. It has a high sound absorption spectrum and has a better sound absorption effect on high, medium and low noise.

Summary. The sound-absorbing treatment method of the wall is as follows:1

Placement of sound-absorbing materials: Fix sound-absorbing materials such as decorative panels or other sound-absorbing materials on the wall and effectively reduce the echo of sound on the wall. 2.

Installation of sound insulation materials: The installation of sound insulation materials such as sound insulation panels can form a certain sound insulation layer in the wall to prevent the transmission of sound. 3.

Installation devices: Install various vibration damping, sound insulation and other devices on the wall, such as hanging fabric devices and interspersed with wooden elements to improve the noise absorption effect. 4.

Use wallpaper: Choose professional sound-absorbing wallpaper, which can effectively affect the direction of sound wave propagation in the space and reduce wall sound**. In short, the sound absorption treatment method of the wall needs to be comprehensively considered according to the specific situation, and different methods may produce different effects, so it is necessary to choose suitable materials and methods.

At the same time, it is necessary to comply with building and fire safety regulations and choose building materials that meet quality standards.

The sound-absorbing treatment method of the wall is as follows:1Placement of sound-absorbing materials:

Affix sound-absorbing materials such as decorative panels or other sound-absorbing materials to the wall and effectively reduce the echo of sound on the wall. 2.Installation of soundproofing:

The installation of sound insulation materials such as sound insulation panels can form a certain sound insulation layer in the wall to prevent the transmission of sound. 3.Retrofitting device:

Install various vibration damping, sound insulation and other devices on the wall, such as hanging fabric devices and interspersed with wooden simple grip elements, to improve the noise absorption effect. 4.Use wallpaper:

Choosing professional sound-absorbing wallpaper can effectively affect the direction of sound wave propagation in the space and reduce wall sound**. In short, the sound absorption treatment method of the wall needs to be comprehensively considered according to the specific situation, and different methods may produce different effects, so it is necessary to choose suitable materials and methods. At the same time, it is necessary to comply with building and fire safety regulations and choose building materials that meet quality standards.

Excuse me, but please go into more detail?

The sound absorption treatment method of the wall is to reduce the noise and improve the indoor acoustic environment by reducing the sound wave of the dust and low sound wave reflection and transmission. Common wall sound absorption treatment methods include:1

Hanging paintings and wall decorations: Hanging paintings and wall decorations on the wall can increase the obstruction of sound waves on the wall, reduce reflection, and play a certain sound-absorbing effect of the local stove. 2.

Audio flexible packaging: Audio flexible packaging is a kind of sound-absorbing material, which enhances the sound-absorbing effect by covering multiple layers of sound-absorbing materials on the paulownia wall. 3.

Sound-absorbing board: Sound-absorbing board is a wall decoration material specially designed for the acoustic environment, which can make full use of the sound-absorbing characteristics of the material itself, so that the sound-absorbing board itself becomes an efficient sound-absorbing body and reduces sound wave reflection. 4.

Acoustic isolation tape: The acoustic isolation tape can completely isolate the sound, which is used to prevent noise penetration and achieve overall closure. It is often used in soundproofing projects, such as theaters, recording studios, etc.

To sum up, the wall sound absorption treatment method can be achieved through a variety of ways such as hanging paintings, wall decorations, sound-absorbing plates, audio flexible packaging and acoustic isolation tape, etc., the key is to select suitable materials and methods according to the actual situation and requirements to achieve the best sound-absorbing effect.

The echo wall is the wall of the imperial dome, with a height of meters, a thickness of meters, a diameter of meters, and a circumference of meters.

The sound bar has an echo effect. If one person stands under the wall of the east side hall and whispers to the north wall, and the other person stands under the wall of the west side hall and speaks softly to the north wall, the two people put their ears close to the wall, and they can clearly hear the voice of the other person at the other end, and the voice of the voice echoes for a long time.

The reason why the echo wall has an echo effect is that the construction of the Imperial Dome wall is based on the acoustic principle of sound transmission. The wall is made of ground bricks and joints, smooth and flat, and the arc is excessive, which is conducive to the regular refraction of sound waves. In addition, the upper part of the wall is covered with glazed tiles, so that the sound waves will not disappear diffusely, and the echo effect of the echo wall is created.

1. Paste sponge or polyester fiber acoustic panels on the wall.

2. Paste soundproof wallpaper on the wall.

4. Build the wall with small bricks, and then paint the wall with cement to paint the wall, which has the best sound insulation effect.

5. Staple the wall with a gauze jujube net, and then use cement to paste tiles on the wall, which has a good sound insulation effect.

6. Add a layer of foam board to the wall, and then deal with the wall, this effect must be tightly bound to the foam board, and the sound will leak and the sound insulation effect will not be achieved.

7. Add a layer of sound insulation cloth in the wall, this effect is easy to construct, and the sound insulation effect is very good.