摘 要

　　本文中，以聲阻抗探討材料對聲音的影響，並由阻抗管原理製作了一個聲阻抗管，利用聲阻抗管能量測材料之聲阻抗，也由模擬來了解當聲阻抗改變後管內聲場的改變，並利用LMS控制理論實際應用到金屬鋁板的振動，藉由振動來改變材料聲阻抗值，由實驗可知在聲阻抗管內的聲場的確有影響。此外由聲阻抗管量得材料在控制過後之聲阻抗，代入理論模擬聲場中，驗證了理論及實驗在控制前後之聲場改變之一致結論。

Abstract

　　This paper explores the effects of material impedance sound changes. We make an impedance tube by the theorem of impedance tube, and use it to measure material impedance. The first we use computer simulation to know the effects of material impedance sound changes. Secondly, we control vibration of aluminum relies upon the application of the filtered-X LMS ( least mean square ) in order to change material impedance. The sound in impedance tube is indeed influenced proved by the experiment. Furthermore, the controlled sound and simulation are coincidence.

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