The basic principle is that transmission loss increases by 6 decibels for each doubling of frequency or wall mass per unit area, up to a plateau for a given frequency. For example, a 1/8-inch thick lead sheet would result in a higher transmission loss than a 1/16-inch thick sheet. Noise reduction principle of generator air shr r fan noise of a high-speed diesel or gas en e room to meet the requirements of users outside. In a room with hard surfaces,soft materials such as absorbent ceiling panels,floor rugs or carpeting,and. Silent Genset is a reciprocating diesel engine equipped power generating machine with reduced noise levels. We'll go over why it works, what you'll need, and the steps involved. Can You Enclose a Generator to Make it Quieter? You can enclose a generator to make it quieter, providing you use soundproofing materials. The following subheadings outline practical options. Silencers are typically installed at the. Noise control containment involves a system composed of three basic fundamentals: sound, path, and receiver. Before a solution to a complex noise problem can be designed, the dominant source of noise pollution must be known, the characteristics of the transmission path must be discovered, and an.