Aeronautical Research Institute, University of Tokyo
雑誌名
東京大學航空研究所報告
雑誌名(英)
Report/Aeronautical Research Institute, University of Tokyo
巻
25
号
4
ページ
67 - 85
発行年
1959-03
抄録（英）
The measurement of attenuation of an acoustic element can be realized as was reported in the previous paper (Part I). On the other hand, the attenuation characteristics can be calculated from the equivalent circuit of an acoustic system, if the four terminal constants of each section are known. Present work has been devoted to the determination of the four terminal constants, A, B, C and D of fundamental elements of acoustic filters [1]. The method and some results were reported. They are in considerable agreement with the theory. Attenuation of a combination filter was calculated also from measured A, B, C and D.
FUNDAMENTALS OF ACOUSTICAL SILENCERS : (II) Determination of four terminal constants of acoustical elements
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