Design and Experimental Test of the Audio Directional System

Yang Zhang; Qiang Su; Hao Li; Jie Qiu

doi:10.4028/www.scientific.net/AMM.654.291

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 654Design and Experimental Test of the Audio...

Design and Experimental Test of the Audio Directional System

Abstract:

The audio directional system is a new kind of loudspeakers, which can project the audio signal into a specified area as a beam of light. In this paper, the basic principle and system components of the audio directional system are presented. Based “Berktay far-field solution”, the total harmonic distortion of the self-demodulated signals is discussed. In addition, the relative tests are made with the audio directional experimental equipment which is designed. After comparing the theoretical data with the experimental data, point out the disadvantages of self-demodulation theory.

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Periodical:

Applied Mechanics and Materials (Volume 654)

Pages:

291-295

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.654.291

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Online since:

October 2014

Authors:

Yang Zhang*, Qiang Su, Hao Li, Jie Qiu

Keywords:

Directional Audio System, Parametric Acoustic Array, Self-Demodulation Theory, Total Harmonic Distortion (THD)

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