Features of impact of high-frequency noise and way of decrease in his level on production

Prevention of formation of considerable level of sound pressure in conditions of production has to be carried out at stages of designing of processing equipment, design, construction and operation of the enterprises and also development of technological processes. Weakening of noise by means of sound insulation is carried out means which cornerstone use of acoustic materials is. The efficiency of sound insulation is characterized by reflection coefficient which is in number equal to a share of energy of the sound wave reflected from a surface of the protection isolating a noise source.