Woven laminate as lining for sound absorption of inlet and outlet sound absorbers and method of production of an acoustic insulation unit

A woven laminate for sound absorption that includes a first woven layer, a second woven layer, and a third woven layer. The first woven layer has a coarse structure. The second woven layer has a fine structure. The third woven layer has a medium structure. Each of the first, second, and third woven layers are composed of metallic wires that are woven to each other or interlaced as a fleece. At least one of the first, the second, and the third woven layers are superimposed in order to form the woven laminate. The woven layers are placed in the layer order fine-coarse-medium. The woven layers are welded together at least partially.
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