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In a good room, the acoustic properties are adjusted to the function of the room. In instruction rooms where lessons and workshops are given, audibility is very important. In small rooms, sound usually lingers shorter than in large rooms. For the instruction room, we chose 25 mm panels to be hung horizontally. The panels hang on cables and are fixed to the structural ceiling.
Good absorbent materials have an average NRC (Noise Reduction Coefficient) value ranging between 0.85 and 1.0. When applied in this way, the panel has an NRC value of: 1,00.