The book discusses a complex of issues related to the solution of the problem of reducing industrial noise at the enterprise. Methods of calculation of sound insulation of enclosing structures of buildings and premises, acoustic calculations of gas-dynamic and ventilation installations are given. Measures to reduce noise at various production sites and methods for assessing their effectiveness are given. recommendations are given for the use of sound-absorbing materials, noise-damping and sound-insulating structures. Methods of noise reduction at test stations are described.