An ultra light, noise reducing composite (1) comprises an acoustically
transparent, light weight film (6) between an underlay layer (5) and an
air flow resistance layer (4). This composite allows to easily tune the
acoustic properties by balancing the absorption and sound transmission
behaviour of the composite (1). This air flow resistance layer (4) has an
air flow resistance of between 500 Ns/m3 and 10,000 Ns/m3 and an area
mass between 200 g/m2 and 3,000 g/m2. The underlay layer (5) has a
stiffness value in the range between 100 Pa and 100,000 Pa. The light
weight film (6) may consist of a synthetic foil and preferably has a
thickness of 0.01 mm.