標題: Development of panel loudspeaker system: Design, evaluation and enhancement
作者: Bai, MSR
Huang, TL
機械工程學系
Department of Mechanical Engineering
公開日期: 1-Jun-2001
摘要: Panel speakers are investigated in terms of structural vibration and acoustic radiation. A panel speaker primarily consists of a panel and an inertia exciter. Contrary to conventional speakers, flexural resonance is encouraged such that the panel vibrates as randomly as possible. Simulation tools are developed to facilitate system integration of panel speakers. In particular, electro-mechanical analogy, finite element analysis, and fast Fourier transform are employed to predict panel vibration and the acoustic radiation. Design procedures are also summarized. In order to compare the panel speakers with the conventional speakers, experimental investigations were undertaken to evaluate frequency response, directional response, sensitivity, efficiency, and harmonic distortion of both speakers. The results revealed that the panel speakers suffered from a problem of sensitivity and efficiency. To alleviate the problem, a woofer-using electronic compensation based on H-2 model matching principle is utilized to supplement the bass response. As indicated in the result, significant improvement over the panel speaker alone was achieved by using the combined panel-woofer system. (C) 2001 Acoustical Society of America.
URI: http://dx.doi.org/10.1121/1.1371544
http://hdl.handle.net/11536/29617
ISSN: 0001-4966
DOI: 10.1121/1.1371544
期刊: JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
Volume: 109
Issue: 6
起始頁: 2751
結束頁: 2761
Appears in Collections:Articles


Files in This Item:

  1. 000169322800025.pdf