Abstract

This paper presents the results of measurements, made by the reverberation method, of the absorption due to strips of various widths. Conclusion is drawn that, with diffusion agencies in the room, the narrowest practicable strip gives the greatest apparent absorption per unit area, with a continuous decrease as the strip width is increased. Further, for strips narrow with respect to the wave-length, the strip will be more effective if placed at the edge of a wall area, than if placed in the center of the same wall area.

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