One of the many issues, with respects to building interiors, architects and interior designers are facing today is echoing or long reverberation time.
With current trends for interiors to become more solid (tiles, hardwood flooring, glass, solid counter tops, polished concretes, solid furniture items etc.) it is becoming increasingly more evident that building interiors suffer from becoming echo chambers. This effect often diminishes, even destroys, the desired ambience the designer/home-owner was striving to achieve.
When any source (TV, radio, a conversation etc.) generates sound, a wave is created that will travel until it impacts with a solid surface. The density of the material will determine how much of that sound will be absorbed as heat energy and how much will we reflected and cause reverberation (echoing). The denser or more solid the material, the greater the number of sound waves that will be reverberated back into the building interior, causing echoing. The softer or more porous the material, the greater the amount of sound waves that will be absorbed.
By far the most cost-effective and efficient means to reduce this undesirable echoing is to introduce materials that can absorb the sound, thereby significantly reducing reverberation.
The amount of sound energy any particular material can absorb is measured by it Noise Reduction Coefficient (NRC). This measurement can be between zero (0) and one (1), where zero equals 100% reflection and one is 100% absorption.
All our pendant light designs are constructed from a high sound absorbing material which is made from 100% polyester fibres compressed into a semi-rigid board.
When one of the pendant light fins is measured stand alone, it achieves a minimum NRC of 0.45.
When measured as a complete assembly (all 12 fins installed) it is possible to achieve a NRC of 0.70.