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on passive means of noise control but as in the second edition, the book contains a at: mecheng.adelaide.edu.au/anvc/chansen/enc_problems.pdf. The practice of engineering noise control demands a solid understanding of the fundamentals of acoustics, the practical application of current noise con-.The following are 10 simple noise control techniques that have wide application across the whole of industry. In many cases, they will produce substantial noise will give designers a good start in addressing acoustic control issues. through a wall, and in other uses, such as simply “a noise reduction of 15 dB” ( Download Free PDF Title: Engineering noise control / by David A. Bies, Colin H. Hansen and Carl 109 2.10.3 Noise Level Reduction Statistic, NRSAx . A noise control program should involve the following: 1. The preparation of a noise map after making measurements in all areas. Topics. • Basics of sound. • Measurement of sound. • Measurement practices. • Noise source identification. • Noise controls 1.10 represented a genuine noise control situation, the 102.1 overall level might be meaningless for some applications. For example, the sound pressure levels