Abstract:
A modular sound absorbing structure (10) and a method for manufacturing a modular sound absorbing structure (10) are presented. The structure (10) comprises a plurality of planar rigid sound absorbing modules (M1 -M3), each one of which comprises at least one sound absorbing element (40), and support elements (21A-21D) providing a rigid frame (24) for a number of planar rigid sound absorbing modules (M1 -M3) of the plurality of planar rigid sound absorbing modules (M1 -M3), wherein each one of the number of planar rigid sound absorbing modules (M1 -M3) is arranged on a first plane, wherein the rigid frame (24) is in mechanical contact with peripheral portions of the number of planar rigid sound absorbing modules (M1 -M3), and the structure (10) comprises attaching portions (23) attaching two support elements (21A-21 D) to each other, and the planar rigid sound absorbing modules (M1 -M3) comprise first rigid sheets (41) of metal.
Abstract:
Metal -organic framework materials can be used as acoustic attenuation materials. A sound attenuation material includes a metal-organic framework material that attenuates audible frequency sound incident thereon. The sound attenuating material can be used in acoustic applications such as building construction materials.
Abstract:
A kit for constructing an audio-visual viewing room (100) comprises a set of acoustic insulation panels (164) arrangeable to form a wall assembly (104, 106, 108, 110) of the room, each acoustic insulation panel comprising an acoustic foam core and a facing affixed to the core, wherein at least one of the acoustic insulation panels comprises a pre-made speaker mounting (228), at least a plurality of the acoustic insulation panels comprise one or more pre-installed trunking elements (202, 212) mounted on the facing, and the acoustic insulation panels comprise interlocking edges for connecting adjacent acoustic insulation panels together upon construction of the room.
Abstract:
Es wird ein Schallabsorbierendes Element (1') gezeigt, umfassend eine Trägerplatte (12') mit einer schallzugewandten und einer schallabgewandten Oberfläche, und eine an der schallzugewandten Oberfläche der Trägerplatte (12') angeordnete Stabilisationsschicht (11') mit eine Mikroperforation bildenden Löchern (111'), wobei die Trägerplatte (12') schallzugewandte Öffnungen (121') auf der schallzugewandten Oberfläche und schallabgewandte Öffnungen (122') auf der schallabgewandten Oberfläche aufweist, wobei die schallzugewandten und schallabgewandten Öffnungen (121'; 122') kommunizierend über Kanäle (123') in Verbindung stehen, wobei die Mehrzahl der Flächen der schallzugewandten Öffnungen (121') grösser als die Flächen der schallabgewandten Öffnungen (122') ist, und wobei ein Anteil der die Mikroperforation bildenden Löcher (111') mit einer Mehrzahl der schallzugewandten Öffnungen (121') zur akustisch aktiven Wirkung, insbesondere zur Bildung von Helmholtz-Resonatoren und Mikroabsorbern, kommunizierend verbunden ist.
Abstract:
An acoustical tile including: 8 to 25 wt % mineral wool, 9 to 15 wt % starch binder, 9 to 15 wt % cellulosic fiber, wherein preferably the cellulosic fiber is newsprint, and 40 to 65 wt % perlite, wherein the weight ratio of the starch to the cellulosic fiber is 0.6 to 1.3:1; and a process for making the acoustical tile.
Abstract:
An acoustic damping article includes a substrate, wherein the substrate has a surface area S. The acoustic composition further includes a polymer resin. The polymer resin coats partially the surface area with a set of areas. The ratio of the coated areas over the surface area S is less than 1 and the polymer resin coverage is not greater than about 500 g/m 2.
Abstract:
An acoustic decorative sheet includes a film layer, a glass cloth layer, and an adhesive layer separating the film layer from the glass cloth layer. The adhesive layer is adhered to the film layer and the glass cloth layer. The film layer and the adhesive layer have a plurality of micro bores disposed there through. The micro bores have a diameter in a range from 20 to 500 micrometers and number from 2 to 700 microbores per cm 2 . An acoustic assembly includes the acoustic decorative sheet, a substrate; and an air gap at least partially separating the acoustic decorative sheet from the substrate.
Abstract:
L'invention concerne un matériau de protection et/ou de combustion (1), notamment d'isolation thermique et/ou de protection contre des chocs ou des dégradations, comprenant au moins une matière végétale cellulosique, caractérisé en ce qu'il comprend au moins un agent liant d'origine végétale, à l'état naturel, pour retenir ladite matière végétale cellulosique dans ledit matériau (1) par l'établissement de liaisons chimiques entre ledit agent liant et ladite matière végétale cellulosique, et en ce qu'il présente une structure sensiblement homogène. Matériaux de protection et/ou de combustion.
Abstract:
An acoustic damping composition includes a binder resin including an addition polymer having a carboxylic functional group and a urethane component. The acoustic damping composition has a Mode 1 Damping Parameter of at least 0.45.