The light steel structure is filled with glass wool between the inner and outer walls and the joists of the floor, which effectively blocks the audio part that is transmitted through the air. For the impact sound transmitted by the solid, the following structure is constructed: two wall columns are used for the household wall. Two walls with intermediate gaps; and for small keels of fixed plasterboard for ceilings, elastic structures with small slots are used to effectively reduce solid sound propagation between floors.
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