The measurement and evaluation of bespoke 3‐D absorptive panels: A comparative analysis.

A recent movement of Scandinavian design houses has brought about a new artistic sensitivity to porous sound absorbers in the world of architectural acoustics. These absorbers have vibrant colors and textures never before seen on a mass scale. However, as the design of these absorbers becomes more intricate, the problem arises on how to test such bespoke products in accordance with international standards. A particular problem is the arbitrary size of the products. Monetary and labor constraints keep these absorbers from being produced to a size that will satisfy international requirements. Therefore, a testing methodology and correction factor is needed in order to predict the acoustic performance of the designer products. Although this test methodology is not meant to replace current standards for total surface area criteria, this approach would work as a corollary, allowing materials that could not be easily reproduced to be measured in conjunction with standards despite their size, saving designers an...