2P1-C21 多チャンネルマイクロホンを用いた2次元および3次元音圧分布時間変化測定システムの構築

概要

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We developed 2D and 3D time-variable sound pressure distribution measurement system using multiple microphones. We measured 2D and 3D time-variable sound pressure distribution generated by orthogonal two and three lines speaker array with the system. To select optional time's sound pressure distribution data makes possible to measurement of 2D and 3D time-variable sound pressure distribution. The speaker array can form an area of higher sound pressure. We describe the area of higher sound pressure as sound spot. We describe a point the sound spot will being as focus spot. We aim to measure the sound spot migrating. The shape of sound spot orthogonal two lines speaker array form is circular cylinder. The shape of sound spot orthogonal three lines speaker array form is globosity.
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