A noise suppression device and method
A noise suppression and noise technology, applied in the field of noise suppression devices, can solve the problems of bulky, uncomfortable feeling, and poor anti-noise effect, and achieve the effect of suppressing high-frequency noise.
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[0050] The technical means and effects used by the present invention to achieve the purpose will be described with reference to the drawings, and the embodiments listed in the drawings are only for assistance, to help your reviewers understand that the technical means of this case are not limited to the listed figure.
[0051] First of all, the main structure of the present invention can be divided into two parts, one is the acoustic filter structure design, the other is the suppression circuit design. For the acoustic filter structure design, please refer to Figure 3 and Figure 4. The noise suppression The device 10 includes a housing 6, and a cavity 2 is provided in the housing 6, assuming that the cross-sectional area of the cavity 2 is S2 and the length is L2; An outer tube 1 and an inner tube 3 are respectively provided at both ends. The outer tube 1 has an input end 11 and an output end 12, and the input end 11 penetrates the housing 6 to communicate with the external envi...
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