September-30th-2025
Since the introduction of new residential regulations, developers are not only touting "north-south ventilation" and "extra-large hallways," but also competing for advantages such as "floor impact noise ≤ 65 decibels" and "exterior window sound insulation 40dB." A "silent revolution" that is subverting industry logic is reshaping the value system of Chinese housing. When residential...
Hospital Noise Reduction: Ensuring Tranquility and Recovery
September-30th-2025
During the hospital's construction, high-quality soundproofing materials and soundproof doors and windows were used to effectively block the intrusion of outside noise. The hospital also provides "noise reduction education" to medical staff and patients. Through training and publicity, everyone is reminded to speak softly and handle items with care in the hospital environment, especially in...
September-30th-2025
The draft for public comment proposes that residential communities should, in principle, comply with the noise limit requirements of their respective acoustic environment functional zones. Community neighborhood committees, homeowners' committees, and property management companies should promptly dissuade and mediate any noise disturbances caused by social life within residential communities....
Your ears are being "murdered"! Authoritative data reveals how acoustics affects health and life
September-30th-2025
Noise-canceling headphones harbor a hidden danger: Active noise cancellation (ANC) technology reduces ambient noise, but long-term use can lead to "auditory deprivation"-a 42% decrease in the brain's sensitivity to subtle sounds (Cambridge University 2023). A breakthrough discovery: A Chinese Academy of Sciences team used 40Hz gamma-ray sound stimulation to discover that specific frequencies...
September-30th-2025
Sanyuan Environmental Solutions: More than just soundproofing, offering a "breathing" tranquility. Sanyuan Ventilated Soundproof Windows integrate acoustic engineering and aerodynamic innovations to achieve the dual benefits of "soundproofing + ventilation" through a "three-layer protection system." Choose Sanyuan Environmental: Protecting the "sound" quality of life with professional...
Apple's new patent for AirPods: can monitor user's breathing rate
September-30th-2025
On May 1, 2025, Apple disclosed a patent (US20250134408A1) titled "Determining Respiration Rate Based on Audio Stream and User State." This patent aims to utilize the existing hardware architecture of head-mounted devices such as AirPods to implement respiratory monitoring. This method is applicable to different scenarios (such as...
September-30th-2025
Sanyuan Environmental Ventilation Soundproof Windows utilize "soundproofing + ventilation" synergistic technology to break the paradox of traditional doors and windows: "silent windows lack oxygen, while ventilation creates noise," redefining the standard for a healthy living sound environment. • Military-grade sealing system: EPDM composite foam strips and elastic sealant filler eliminate...
Ventilated and soundproof windows: a silent revolution to reconstruct healthy living
September-30th-2025
1. Noise: An Underestimated Health Risk. WHO statistics show that long-term exposure to noise levels above 55dB (equivalent to a busy street) increases the risk of cardiovascular disease by 17% and sleep disturbances by 35%. Ventilation Efficiency | Opening windows for ventilation ≈ 100% | Micro-positive pressure fresh air system (ventilation...
Smart Soundscape Reconstruction: A Solution to Solving the Urban "Sound Triangle"
September-30th-2025
Student Study Guardian: Utilizing a gradient noise reduction structure, it attenuates low-frequency square dance sounds into background white noise. Tests show that this reduces distractions for students preparing for exams by 80%. Quiet Zone Generator for Workers: Automatically activates sleep mode at night, ensuring air circulation while isolating sudden noises like promotional announcements...
Towards the "Boundary of Silence": How Rail Transit Noise Control Reshapes Urban Soundscapes
September-30th-2025
- Traction system "quiet upgrade": Permanent magnet synchronous traction motors reduce noise by approximately 15 decibels compared to traditional asynchronous motors. Combined with optimized variable frequency control, this enables train acceleration to achieve "quiet mode" like starting. For example, the composite sound-absorbing barriers installed in residential areas on Shanghai Metro Line...
What to do about daytime noise nuisance? The law is clear: exceeding decibel levels is illegal!
September-30th-2025
Noise complaint percentages nationwide: Social life noise: 58% (primarily from square dancing, renovations, and shop loudspeakers); Construction noise: 23%; Traffic noise: 15%. Daytime complaints: Over 70% of noise disputes occur between 8:00 AM and 8:00 PM. Government Action: Technology empowers precise noise control and intelligent supervision: Beijing...
Analysis of the impact of urban rail transit noise on surrounding residential areas
September-30th-2025
While urban rail transit improves transportation convenience, it also impacts residential areas along the route in various ways, including noise and vibration, which in turn impacts real estate prices. Vibration impact analysis: Vibration originates from wheel-rail interaction and propagates through the track, strata, and building structures, exhibiting different characteristics in underground...