Distance, frequency factor, barrier height, and the sound source and the receiving point upright wall of noise insulation between the amount of noise about. A large component of the noise reduction effect relationship soundproof walls and noise frequency of greater than 2000Hz frequency acoustic noise reduction ratio of about 800 to 1000Hz intermediate frequency sound better, but around 25Hz low-frequency sound. Due to relatively long wavelength acoustic and easily diffracted from the wall side in the past, so the effect is poor. Typically, high frequency acoustic noise walls to reduce l0-15dB. Highly soundproof walls, can be designed according to the distance between the sound source and the receiving point, double the height of the wall, then the noise increase the amount of high-speed 6dB sound barrier, the noise reduction effect of noise walls in order to make better, should be make noise walls close to the sound source or receiving point. Upright sound barrier purposes: mainly for high-speed rail and highway sound barriers along the planning, as well as highways, elevated roads composite, S-Bahn subway and other transportation facilities in the municipal acoustic noise, control the impact of traffic noise on nearby urban areas It can also be used in factories and acoustic noise other noise sources. Yao Di factory direct cheap; soundproof network, silencers board, noise barriers, acoustic sound barrier installation barrier speed, everything, quality assurance; You are always welcome to come to consult soundproof network, to serve you is our pleasure. At present, the sound barrier is mainly used to adjust the road, elevated complex roads, urban and other light rail subway and other transportation facilities in the municipal acoustic noise, control the impact of traffic noise on nearby urban areas, it can also be used for sound insulation factories and other noise sources Noise. Our sound network design has fully considered the wind load, the impact of road traffic safety vehicles and all-weather outdoor corrosion. Products using aluminum coil, galvanized coil, glass wool, H galvanized steel column surface. High-speed sound barrier plan, Yao Di wire mesh (certified), high-speed sound barrier by Yao Di Anping Wire Mesh Products Co., Yao Di Anping metal mesh Products Co., Ltd. (www.ydshengpingzhang.com) Hebei Hengshui, noise, sound-absorbing materials, leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer demand. Yao Di leader in mesh with the staff warmly welcome all inquiries negotiations to create Yao Di mesh better future.