室內聲場清晰度與第一反射遲延之相關性－以朝陽科技大學禮堂及演講廳為例

Relationship between Definition and Time Delay of First Reflection in a Sound Field-Example of the Auditorium and Lecture Hall at Chaoyang University of Technology

陳炯堯(Chiung-Yao Chen) ； 王泉普(Chuang-Poo Wang) ； 石佳玉(Chia-Yu Shih)

《建築學報》 39期 (2002/02) Pp. 63-69

https://doi.org/10.6377/JA.200202.0063

摘要

This study attempts to establish a relationship between subjective definition and one of the objective parameters, time delay of first reflection(△t1)base on Ando's theories^1. The parameter may represent the subjective definition preference and can be used as a reference in designing an auditorium before construction. The method of this study applied a series of subjective definition test (paired-comparison method)and calculated the subjective preference of time delay of initial reflection △t1 using Ando's formula. According to the analysis of the subjective difinition of the auditorium and the lecture hall at Chaoyang University of Technology, and the calculation of subjective preference for △t1, the results show significant correlation between them(auditorium r=0.62, p＜0.05; lecture hall r=0.71, p＜0.05).

關鍵字

清晰度 ； 第一反射遲延時間 ； 主觀評估

並列摘要

This study attempts to establish a relationship between subjective definition and one of the objective parameters, time delay of first reflection(△t1)base on Ando's theories^1. The parameter may represent the subjective definition preference and can be used as a reference in designing an auditorium before construction. The method of this study applied a series of subjective definition test (paired-comparison method)and calculated the subjective preference of time delay of initial reflection △t1 using Ando's formula. According to the analysis of the subjective difinition of the auditorium and the lecture hall at Chaoyang University of Technology, and the calculation of subjective preference for △t1, the results show significant correlation between them(auditorium r=0.62, p＜0.05; lecture hall r=0.71, p＜0.05).

並列關鍵字

Definition ； Delay time of first Reflection ； Subjective preference

參考文獻

Ando, Y.(1977).Subjective Preference in Relation to Objective Parameters of Music Sound Field with a Single Echo.The Journal of the Acoustical Society of America.62

Kuttruff, H.(1979).Room Acoustics.

Nakajima, T., Ando, Y.(1989).Proceeding of Acoust. Soc. Jpn.

Thurstone, L. L.(1927).A law of comparative judgment.Psychological Review.34

江維華 Chiang, Wei-Hwa、 黃弘昌 Hwang, Hong-Chang(1997)。以現場音樂演出為對象之演藝廳音響性能主觀評估。建築學報 Journal of Architecture。22