STUDIES AND RESEARCH CONCERNING THE USE OF SOME RECYCLABLE ABSORBENT MATERIALS FOR INCREASING ACOUSTIC COMFORT INTO A ROOM DESIGNED FOR SPEAKING
FLORIN MARIAN NEDEFF 1*, NARCIS BâRSAN 1, ADRIANA LUMINIțA FîNARU 2 ”Vasile Alecsandri” University of Bacau, Faculty of Engineering,
157, Calea Marasesti, 600115 Bacău, Romania
(1)Department of Environmental Engineering and Mechanical Engineering
(2)Department of Chemical and Food Engineering
The acoustic comfort of a speech hall is characterized by acoustic parameters. These parameters depend by on the hall volume, construction and design materials. On the hall ceiling (the most unused surface), some various acoustic devices can be installed on which the acoustic materials can be applied in order to obtain specific suitable acoustic parameters for that hall. Recycled materials such as wood, granular recycled rubber, shredded recycled plastic and shredded polypropylene, applied on various acoustic devices made from OAS, polystyrene or plasterboard rigips, can increase the acoustics quality of room.
