Page 18 "Acoustical Enclosures"Acoustical enclosures are used in solving the noise issue. Audio that is causing a nuisance. From the machine in the plant or equipment in the main building, the work of acoustical enclosures, keeping the sound waves is placed on either side not be channeled through out to one side. Then it will reduce the power or intensity of sound with sound absorbing material attached to the surface of a pot enclosures.Acoustical enclosures can be divided into 5 categories:1. all areas encompassing large machine in it.2. a small machine or blanket covering portions of large machinery.3. close audio source a specific point or some areas of the machines.4. wrap or cover with sheet metal, such as upholstered upholstered in duct pipe.5. is the machine room. People and vehicles are inside the cover.Performance evaluation is a factor of 3 enclosures.1) Noise Reduction (NR)2) Transmission Loss (TL)3) Insertion Loss (IL)Acoustical enclosures are designed for complete and partial enclosures enclosures, depending on the behavior of a machine, or the audio source and the key factors to consider when designing acoustical enclosures, it is. • the transmission loss of the walls of the enclosure• enclosure's volume and its service area/ access points• absorption of sound energy inside the enclosure (absorptive materials)
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