Using panels or suspended structures are often impossible to use in historically significant or otherwise architecturally protected buildings. Traditionally, acoustic structures are suspended ceiling systems or glued sound absorbing panels which might not be visually the most preferred solution. The acoustic design is included in the plans in many cases at the expense of architectural vision.
The absorption properties of the biofiber-based coating are demonstrated in the present study with three case studies, which all had demanding requirements to conceal the acoustic structures. Therefore, the coating is sustainable and is an environmental friendly solution. In addition, this biofiber-based coating acts as a carbon sink during its operating life, thus reducing the carbon footprint of the building. An acoustic coating is a thin layer of absorption material, but the coating can be sprayed on other sound absorbing structures to make it more effective on a wide frequency range. In this study, we present a biofiber-based acoustic coating as a feasible solution to improve acoustic environments while preserving the aesthetics of spaces. A typical challenge faced by architects and acousticians is to achieve adequate acoustics while maintaining the aesthetics of the space and reducing the visual aspects of acoustic materials and elements. 3Department of Computer Science, School of Science, Aalto University, Espoo, FinlandĪcoustic comfort is directly related to enhanced well-being and performance of people.2Aalto Acoustics Lab, Department of Signal Processing and Acoustics, School of Electrical Engineering, Aalto University, Espoo, Finland.230000001276 controlling effect Effects 0.Jose Cucharero 1,2, Tuomas Hänninen 1 *, Marko Makkonen 1 and Tapio Lokki 2,3.239000004020 conductor Substances 0.000 claims description 8.230000000875 corresponding Effects 0.000 claims description 18.238000005755 formation reaction Methods 0.000 claims description 26.230000015572 biosynthetic process Effects 0.000 claims description 52.239000000463 material Substances 0.000 title claims abstract description 71.Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Priority to FR7206010A priority Critical patent/FR2172808B1/fr Application filed by IFP Energies Nouvelles IFPEN filed Critical IFP Energies Nouvelles IFPEN Application granted granted Critical Publication of US3883841A publication Critical patent/US3883841A/en Links
Original Assignee IFP Energies Nouvelles IFPEN Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.) Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Lifetime Application number US334710A Inventor Guy Norel Robert Desbrandes Current Assignee (The listed assignees may be inaccurate.
Google Patents Localized method and device for the precise determination of the acoustic impedance of material situated in proximity to the wall of a boreholeĭownload PDF Info Publication number US3883841A US3883841A US334710A US33471073A US3883841A US 3883841 A US3883841 A US 3883841A US 334710 A US334710 A US 334710A US 33471073 A US33471073 A US 33471073A US 3883841 A US3883841 A US 3883841A Authority US United States Prior art keywords circuit signal acoustic impulse contact Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google Patents US3883841A - Localized method and device for the precise determination of the acoustic impedance of material situated in proximity to the wall of a borehole US3883841A - Localized method and device for the precise determination of the acoustic impedance of material situated in proximity to the wall of a borehole