Research of Acoustical Properties for the Suspended Sound Absorber Panel and the Seat Variation Used in Sound Field

碩士 === 國立臺灣海洋大學 === 系統工程暨造船學系 === 102 === In nowadays, a variety of different types of room space are more and more with our quality of life enhance, however, there are different room space requiring at different acoustic design. The initial research of this paper is used a room space that before an...

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Bibliographic Details
Main Authors: Li, Wei-Peng, 黎瑋鵬
Other Authors: Liou, Der-Yuan
Format: Others
Language:zh-TW
Published: 2014
Online Access:http://ndltd.ncl.edu.tw/handle/c6tx9t
Description
Summary:碩士 === 國立臺灣海洋大學 === 系統工程暨造船學系 === 102 === In nowadays, a variety of different types of room space are more and more with our quality of life enhance, however, there are different room space requiring at different acoustic design. The initial research of this paper is used a room space that before and after acoustic improvement to measure it’s acoustical properties : Reverberation Time (RT), Clarity index (C50&;C80), Articulation Loss of Consonants(Alcons), Rapid Speech Transmission Index(RaSTI). The improvement using absorber material include the suspended sound absorber panel and others, then compare the simulated result using acoustical simulation software EASE with the measured result. In the second part, we used the Kath&;Kuhl method to measure the seat absorption coefficient with different cushion and the other absorber material, and find the suspended sound absorber panel which has the best absorption coefficient used in the room space. Finally, we took the different seat absorption coefficient used in the room space to simulate the acoustical properties, and discuss the accurate of the simulation. The results can be provided to the relate field.