Noise pollution has become a major problem affecting people's quality of life in daily life. From traffic noise to neighborhood clamor, noise is everywhere. The proper use of sound insulation materials offers an effective way to solve these problems. The following practical examples will demonstrate how sound insulation materials can work wonders.
Case 1: Gently Resolving Noise from Square Dancing
In the jurisdiction of Pingxifu Police Station in Changping District, the noise from square dancing had been a major nuisance for many residents. To resolve this issue, the police ingeniously created a "soundproof box." This seemingly ordinary box has a clever internal structure. It uses three layers of soundproofing panels filled with sound-absorbing cotton. When the speaker is placed inside, the volume is concentrated directly in front of the square dancers, while the surrounding sound is significantly reduced. Actual measurements showed that the volume difference between the area directly in front of the soundproof box and the surrounding area could reach approximately 20 decibels. This measure allows square dancers to fully enjoy their dance while protecting nearby residents from the noise of high-decibel music, achieving harmonious coexistence. This soundproof box design cleverly utilizes the principles of sound insulation materials to block and reflect sound, providing an innovative approach to noise control in public places.
Case 2: The "Terminator" of Footsteps Upstairs
A homeowner in a Shanghai Songjiang residential community decided to soundproof their bedroom because the heavy footsteps of their upstairs neighbor were severely disrupting their sleep. The noise was caused by the floorboards resonating with the walls, generating low-frequency noise ("solid-borne sound"), making ordinary soundproofing methods ineffective. The Jingxiangjia team used fourth-generation suspended vibration isolation and noise reduction technology to create a room-within-a-room soundproofing structure. This included a 14cm suspended soundproof and vibration-damping ceiling (8 layers in total: 1 air layer, 1 keel, 2 felts, 2 cotton, and 2 boards) and an 8.5cm suspended soundproof and vibration-damping wall (6 layers in total: 1 air layer, 1 keel, 1 felt, 1 cotton, and 2 boards). The main soundproofing material was bio-based super cotton specially formulated for Chinese families, boasting advantages such as flame retardancy (Class A), a density of 100kJ, a sound insulation of up to 25dB, and being formaldehyde-free, acrylic-free, and odorless. After the construction was completed, the homeowner reported that they could no longer hear footsteps from upstairs in their bedroom. This case fully demonstrates that by combining scientific sound insulation techniques with high-quality sound insulation materials, excellent sound insulation effects can be achieved for specific noise sources.
Case 3: A "Quiet Corner" in the Shopping Mall
At Greenland Center, shared soundproof booths provide temporary quiet spaces for people. The tops of the booths are made of sound-absorbing and echo-damping materials such as sponge and foam boards. While they cannot completely block out external sounds, they effectively block out most noise. For those with temporary work needs, this has become a good option. For example, a woman on a business trip to Shanghai successfully completed her work using the soundproof booth. Although the soundproof booths have some minor drawbacks, such as a buzzing sound when the fresh air system is running, which can slightly affect tasks requiring high sound quality, such as recording, their role in creating a relatively quiet environment through sound insulation materials is undeniable, meeting the needs of daily office work and study. Furthermore, the soundproof booths have two-way sound insulation properties, making it difficult for sound to escape from inside, thus protecting privacy to a certain extent.
Case Study 4: The "Tamers" of Car Noise
Many XPeng X9 owners have reported excessive vehicle noise, with tire noise, road noise, and high-speed wind noise severely impacting the driving experience. DaNeng Soundproofing offers a highly efficient solution: door sealing strips + three-layer soundproofing for all four doors + soundproofing for all four wheels. Door sealing strips, a crucial component of automotive soundproofing, can be installed without disassembly or damage, effectively improving sound insulation. The three-layer soundproofing for all four doors targets the thinnest sheet metal and the primary pathway for noise transmission in the doors, reducing wind and external noise while improving audio quality. The four-wheel soundproofing utilizes vibration damping, low-frequency blocking, and a "Windsor trap" treatment to effectively reduce tire and road noise. These soundproofing measures significantly enhance the driving experience, fully demonstrating the crucial role of soundproofing materials in improving the acoustic environment of the automotive industry.
Case 5: Techniques for Eliminating Drain Pipe Noise
Drain noise is a common problem in home renovations. One homeowner, during renovations, sought to solve the noise problem from his kitchen drainpipes by soundproofing them. He tried three methods: covering only with sound-absorbing cotton, covering only with damping sheets, and covering with both. He ultimately found that covering with both provided the best soundproofing effect. The damping sheets (butyl rubber vibration damping boards) utilize the principle of non-Newtonian fluids to reduce resonance and suppress noise; they are first applied to bends. The sound-absorbing cotton reduces sound reflection. During installation, the pipe surface was first cleaned of dust, the access panels were inspected, the damping sheets were applied, and then the sound-absorbing cotton was wrapped around the pipes and sealed with cable ties and aluminum foil tape. Testing showed that before soundproofing, the decibel level was 65-75; after soundproofing, the level at 20 centimeters dropped to around 40-50 decibels. This case demonstrates that in basic home renovations, correctly selecting soundproofing materials and proper installation can effectively solve the problem of drainpipe noise.
These cases demonstrate that sound insulation materials play a crucial role in addressing noise problems, whether in public or private spaces. Through clever design and installation, tailored to different noise characteristics and environmental needs, they enable people to live, work, and study in quiet environments, making significant contributions to creating comfortable acoustic environments.
USD
GBP
EUR
