Road traffic noise reducing devices. Test method for determining the acoustic performance. Intrinsic characteristics of airborne sound insulation— 10 стр.
Road traffic noise reducing devices. Test method for determining the acoustic performance. Intrinsic characteristics. In situ values of sound diffraction— 38 стр.
Road traffic noise reducing devices. Test method for determining the acoustic performance. Intrinsic characteristics of sound absorption under diffuse sound field conditions— 28 стр.
Road traffic noise reducing devices. Test method for determining the acoustic performance. Intrinsic characteristics. In situ values of sound reflection under direct sound field conditions— 60 стр.
Road traffic noise reducing devices. Test method for determining the acoustic performance. Intrinsic characteristics. In situ values of airborne sound insulation under direct sound field conditions— 52 стр.
Road traffic noise reducing devices. Test method for determining the acoustic performance. Intrinsic characteristics of airborne sound insulation under diffuse sound field conditions— 18 стр.
Road traffic noise reducing devices. Test method for determining the acoustic performance. Intrinsic characteristics. In situ values of airborne sound insulation under direct sound field conditions— 48 стр.
Road traffic noise reducing devices. Test method for determining the acoustic performance. Intrinsic characteristics of airborne sound insulation under diffuse sound field conditions— 16 стр.