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

Pending Publication Date: 2022-07-12
PLA STRATEGIC SUPPORT FORCE INFORMATION ENG UNIV PLA SSF IEU
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in order to evade list-based detection methods, fraudsters usually change numbers frequently; in order to evade content-based detection methods, fraudsters usually change scripts frequently

Method used

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  • Voice-changing fraud phone detection method and device
  • Voice-changing fraud phone detection method and device
  • Voice-changing fraud phone detection method and device

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Embodiment Construction

[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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Abstract

The invention belongs to the technical field of communication network content security detection, and particularly relates to a voice changing type fraud phone detection method and device, and the method comprises the steps: for a call in a telecommunication network, firstly extracting the acoustic features of effective voices in the first few seconds of each call, and obtaining an acoustic feature pattern; and then sending the acoustic characteristic pattern into a false voice detection model for judgment, and submitting a suspected fraud call initiated by voice changing software and detected by the false voice detection model to a worker for auditing. According to the invention, in the detection process, the specific content of the call is not contacted, so that the trouble that a fraudulent replaces the content of the call is avoided, and the communication privacy of the user can be effectively protected.

Description

technical field [0001] The invention belongs to the technical field of communication network content security detection, and in particular relates to a voice-changing type fraud phone detection method and device. Background technique [0002] In recent years, with the rapid development of the communication industry, network fraud represented by telecommunication network fraud has become a prominent problem endangering people's property safety. In order to commit fraud, fraudsters continue to renovate their methods, hide their identities, and change their scripts. With the development of artificial intelligence technology represented by deep learning, audio forgery generation technology continues to mature, and the naturalness and fidelity of forged speech generated based on synthesis and conversion technologies continue to improve, and it has become a tool for online fraudsters. In online fraud, in order to confuse victims, fraudsters usually use mobile phone voice-changing...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W12/12H04W12/128G10L25/27G10L25/51
CPCH04W12/12H04W12/128G10L25/51G10L25/27
Inventor 李邵梅高超黄瑞阳朱宇航王凯李星李英乐
Owner PLA STRATEGIC SUPPORT FORCE INFORMATION ENG UNIV PLA SSF IEU
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