Design of Switching Amplifier Used in Nega- Tive Impedance Disposal for the Active Con- Trol of Transducer’s Acoustic Impedance

Abstract

We present a concept of "active material" with variable acoustic properties, being constituted of an electroacoustic transducer which acoustic impedance can be changed by an active mean. Among the different ways to obtain variable acoustic properties on an electroacoustic transducer's voicing face is the shunting of the transducer's electrical input. With… (More)

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Cite this paper

@inproceedings{Lissek2009DesignOS, title={Design of Switching Amplifier Used in Nega- Tive Impedance Disposal for the Active Con- Trol of Transducer’s Acoustic Impedance}, author={Herv{\'e} Lissek and R. Boulandet and M. Cern{\'i}k and Jan V{\'a}clav{\'i}k and Pavel Mokry}, year={2009} }