Sandwich panel for sound absorption

A device for sound absorption in an aircraft cabin in which between an aircraft supporting structure and the cabin space an interior lining arrangement formed by panels is provided, wherein at least one or more of the panels are sound-absorbent aircraft cabin panels comprising:

• a core layer comprising a plurality of tube-like or honeycomb-like cells that extend in an open manner across the thickness of the core layer and that are separated from each other by cell walls and that are uniform in design;
• a first cover layer that faces away from a sound field;
• and
• a second cover layer that faces towards the sound field and comprises a plurality of perforation holes;
• wherein adjacent cells are interconnected by way of apertures in the cell walls wherein the perforation holes of the second cover layer have a distance (b) between holes, which distance exceeds an opening width (c) of the cells of the core layer;
• wherein the first cover layer is closed;
• and
• wherein the cell walls comprise a perforation so that they are acoustically transparent in the direction parallel to the cover layers.