Changed voice detection method and device

A sound detection and sound measurement technology, applied in the field of information processing, can solve the problems of low efficiency and accuracy of voiceprint recognition technology, and achieve the effect of improving detection efficiency

Active Publication Date: 2018-06-22
IFLYTEK CO LTD
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  • Application Information

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Problems solved by technology

[0005] In view of this, the present invention provides a voice change detection method and device to ...

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  • Changed voice detection method and device
  • Changed voice detection method and device
  • Changed voice detection method and device

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Embodiment Construction

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0026] Before introducing the voice change detection method disclosed in the embodiment of the present application, a brief introduction to the conception process of the voice change detection method disclosed in the embodiment of the present application is given as follows:

[0027] Existing voice change detection schemes mainly rely on empirical analysis and comparison of speech spectrum characteristic maps, observe and compare the spectral differences betwee...

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Abstract

The invention provides a changed voice detection method and device. The method comprises: acquiring voice data to be tested and to be subjected to certification matching with a target object; using apreset changed voice detection model to determine voiceprint characteristic information matching with the voice data to be tested and voice faking judgment results; determining similarity between thevoiceprint characteristic information to be tested and registered voiceprint characteristic information of the target object to obtain voiceprint similarity; determining whether the voice data to be tested is artificially-faked changed voice data according to the voice faking judgment results and the voiceprint similarity. The changed voice detection model is used herein to determine voiceprint characteristic information to be tested, which matches with the voice data to be tested, as well as voice faking judgment results; therefore, detection of the voice data to be tested is achieved, detection efficiency is greatly improved for the voice data to be tested, and precision of test results is greatly improved.

Description

technical field [0001] The field of information processing of the present invention, more specifically, relates to a sound change detection method and device. Background technique [0002] With the development of modern speech signal processing technology, identity authentication methods based on voiceprint recognition are favored by more and more users. However, in the case of massive data interference, in addition to the inevitable existence of two similar natural human , There will also be artificially forged voice-changing voices, which will have a serious impact on the accuracy of voiceprint recognition technology. [0003] At present, for artificially forged voice-changing voices, it usually relies on empirical analysis and comparison of voice spectrum characteristic maps, observes and compares the spectral differences between unforged and artificially forged voices, and qualitatively judges whether the target detection voice has been artificially forged. However, to ...

Claims

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Application Information

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IPC IPC(8): G10L25/51G10L17/02
CPCG10L17/02G10L25/51
Inventor 李晋殷兵柳林胡国平
Owner IFLYTEK CO LTD
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