Upright noise walls

Upright soundproof wall features: 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 6dB, the effect of noise walls in order to make better noise reduction, should try to make noise walls close to the sound source or receiving point. Uses: mainly used in railway and road along, 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 other noise acoustic noise sources. Contact: Ms. Sun Tel: 18333806601 qq number: 2815027584