disclosed the system includes an acoustical enclosure covering the saw and a pair of vibration damping arms covering the workpiece being sawed this combination of elements results in substantially reduced noise levels within the sawing environment application_number US 29786881 A description turning to the figures a saw including the acoustical enclosure system of the present invention is illustrated the saw includes a housing 10 which housing 10 contains the electrical and mechanical elements of the saw including the motor therein a saw blade 12 is connected by linkage means 14 and arms 16 such that the blade 12 moves in a pantographic path over a table 18 upon which the workpiece being cut rests thus the blade 12 moves parallel to table 18 typical of the saws which may be fitted with the acoustical enclosure system of the present invention is an oliver model 94 overtable circular saw fitted to the saw is the acoustical enclosure of the present invention an acoustical housing 20 is illustrated in fig1 and 2 positioned over the blade 12 and table 18 in its operative position housing 20 is designed to provide acoustical shielding of blade 12 the housing 20 is formed with a solid outer layer or skin a central layer of acoustical insulation material and an inner layer of perforated skin thus for example housing 20 may be formed of a sandwich having an outer layer of 0 125 inch 0 318 centimeter aluminum sheet a central layer of 2 00 inch 5 08 centimeter semi rigid glass fiber insulation within a 0 002 inch 0 0051 centimeter polyethylene film and an inner layer of 0 028 inch 0 0711 centimeter perforated aluminum sheet of course the materials of construction may be altered thus for example the inner and outer skins may.