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Volume 12 Issue 1
Aug.  2022
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TIAN Jing, SHA Jia-zheng. A STUDY OF SPATIAL ACTIVE NOISE ATTENUATORS[J]. ACTA ACUSTICA, 1987, 12(1): 16-21. DOI: 10.15949/j.cnki.0371-0025.1987.01.003
Citation: TIAN Jing, SHA Jia-zheng. A STUDY OF SPATIAL ACTIVE NOISE ATTENUATORS[J]. ACTA ACUSTICA, 1987, 12(1): 16-21. DOI: 10.15949/j.cnki.0371-0025.1987.01.003
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A STUDY OF SPATIAL ACTIVE NOISE ATTENUATORS

  • Acoustics Institute, Nanjing University

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  • Received Date: October 09, 1984
  • Available Online: August 07, 2022
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    • Abstract
  • In this paper, the sound radiation characteristics of secondary sources are analysed theoretically and experimentally. A kind of tripole discrete secondary sources is designed. Acceleration signal input method of secondary systems is introduced. Experimental results of the global attenuation of three-dimensional noise fields in a low frequency range are given and discussed for the extreme acoustical laboratory conditions of anechoic chamber and reverberation room.
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