| Project/Area Number |
15K06331
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Architectural environment/Equipment
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| Research Institution | Shibaura Institute of Technology |
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Principal Investigator |
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| Research Collaborator |
ABIKO HIKARU 芝浦工業大学, 大学院
FUJITA ETSUSHI 芝浦工業大学, 大学院
HARA AYANO 芝浦工業大学, 大学院
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2017: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2016: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2015: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
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| Keywords | コンサートホール / 音響設計 / 響きの質 / 要素感覚 / 後期反射音密度 / 音響心理評価 / 室内音響設計 / 反射音構造 / 残響感 / 反射音の時間構造 |
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| Outline of Final Research Achievements |
Regarding the auditory sensations caused by late arriving sound in concert halls, two major factors, namely Subjective Reverberation Length for a temporal attribute and Listener Envelopment for a spatial one, are already confirmed and used as the subjective indicators for evaluating sound field in acoustic design. However, the method of subjective evaluation from a viewpoint of qualitative attribute of reverberance, which relates to the sound diffuseness, remains to be clarified for many years. In this study, a new sensation for qualitative attributes, Texture of Reverberation TRV, was demonstrated in a series of subjective experiments using a multi-dimensional analysis. The results show that the degree of uniformity and density in the temporal distribution of late reflections significantly affects the perception of TRV, and that TRV is useful for subjective evaluation of reverberance in concert halls.
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