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Active suppression of acoustic resonance

 

作者: A. R. D. Curtis,   P. A. Nelson,   S. J. Elliott,   A. J. Bullmore,  

 

期刊: The Journal of the Acoustical Society of America  （AIP Available online 1987）
卷期: Volume 81, issue 3  

页码: 624-631

 

ISSN:0001-4966

 

年代: 1987

 

DOI:10.1121/1.394829

 

出版商: Acoustical Society of America

 

关键词: PLANE WAVES;DUCTS;SOUND FIELDS;ACOUSTIC RESONANCE;POTENTIAL ENERGY

 

数据来源: AIP

 

摘要:

The minimization of acoustic potential energy has been proposed as a method of actively controlling a harmonic reverberant sound field. In this paper an analysis of plane waves in a finite length duct provides insight into the physical mechanisms of this method and allows comparison with two other methods, the acoustical virtual earth and the absorbing termination. A practical technique of achieving the reduction of acoustic potential energy is presented and discussed.

 

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