Active noise reduction method and device
An active noise reduction and noise reduction technology, applied in speech analysis, instruments, etc., can solve the problem of shielding effective sound, and achieve the effect of effective noise removal, good flexibility, and strong pertinence
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[0047] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0048] figure 1 It is a schematic flowchart of steps of an active noise reduction method in an embodiment of the present invention. see figure 1 , the method includes:
[0049] Step 101: Pre-store signal samples of at least one valid sound.
[0050] Specifically, the signal sample of at least one effective sound may be stored in any memory in ...
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