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In this paper,the silencing mechanism and application of high frequency resonant cavity are studied for the purpose of controlling high frequency noise in automobile intake system.It s found that the number and diameter of perforated holes,and the resonant cavity volume are the major factors which influence the transmission loss of single cavity and high frequency resonant cavity.Finally,the surge noise of a car is successfully reduced through utilizing a multi-cavity parallel high frequency resonant cavity,and thus the sound quality is improved.