Voice-changing fraud phone detection method and device
A technology of fraudulent calls and detection methods, applied in security devices, electrical components, voice analysis, etc., to achieve the effect of protecting communication privacy
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[0030] In order to make the purposes, 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 with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work are protected by the present invention. scope.
[0031] like figure 1 As shown, the voice-changing fraudulent call detection method of this embodiment includes the following steps:
[0032] Step S11, for calls in the telecommunication network, extract the acoustic features of the valid speech in the first few seconds of each call to obtain an acoustic feature map.
[0033] In step S12, the a...
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