Method and system for identifying faked identity by preventing faked recordings based on voiceprint and voice

A technology of counterfeit identity and identification method, which is applied in the field of computer and information services, can solve the problems of poor user experience, affecting the performance of voiceprint recognition and speech recognition, and poor recognition performance, so as to prevent the intrusion and identity of fake recordings Verify the effect of stable and reliable threshold adjustment

Inactive Publication Date: 2012-10-03
BEIJING ZHENGYING TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0029] (1) Voiceprint recognition uses random text, which cannot guarantee stable recognition performance;
[0030] (2) Speech recognition uses random text, and the recognition performance is poor due to differences in accents;
[0031] (3) Since voiceprint recognition uses random text, both modeling and verification require a long voice (for example, modeling requires at least 20 seconds, and verification requires at least 10

Method used

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  • Method and system for identifying faked identity by preventing faked recordings based on voiceprint and voice
  • Method and system for identifying faked identity by preventing faked recordings based on voiceprint and voice
  • Method and system for identifying faked identity by preventing faked recordings based on voiceprint and voice

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Experimental program
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Example Embodiment

[0078] Example 1, see image 3 , This embodiment discloses a voiceprint and voice-based anti-recording fake identity recognition method, including the following steps:

[0079] (1) Establish the user's voiceprint model and voice model according to the voice of the user reading the prompt text, specifically:

[0080] (11) Generate fixed text with user ID;

[0081] (12) Combine fixed text with user ID and random text into prompt text;

[0082] (13) Collect the voice of the user to read the prompt text;

[0083] (14) Determine whether the voice in step (13) meets the length of the generated voiceprint model and the length of the voice model, if so, go to step (15), otherwise return to step (12);

[0084] (15) Establish the user's voiceprint model and voice model, and save the fixed text and voiceprint model and voice model with the user ID.

[0085] For example, the fixed text with user ID is 4-7 Chinese characters, preferably a 4-character or 7-character phrase, idiom or allegorical.

[0086...

Example Embodiment

[0099] Example 2, see Figure 4 , This embodiment discloses a voiceprint and voice-based anti-recording fake identity recognition method, including the following steps:

[0100] (1) Establish the user's voiceprint model and voice model according to the voice of the user reading the prompt text, specifically:

[0101] (11) Generate fixed text with user ID;

[0102] (12) Combine fixed text with user ID and random text into prompt text;

[0103] (13) Collect the voice of the user to read the prompt text;

[0104] (14) Determine whether the voice in step (13) meets the length of the generated voiceprint model and the length of the voice model, if so, go to step (15), otherwise return to step (12);

[0105] (15) Establish the user's voiceprint model and voice model, and save the fixed text and voiceprint model and voice model with the user ID.

[0106] For example, the fixed text with user ID is 4-7 Chinese characters, preferably a 4-character or 7-character phrase, idiom or allegorical.

[010...

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Abstract

The invention discloses a method and a system for identifying a faked identity by preventing faked recordings based on voiceprint and voice. The method comprises the following steps: building a voiceprint model and a voice model for a user according to a voice read by the user of a fixed text with a user ID, and storing the fixed text with the user ID as well as the voiceprint model and the voice model; generating an alerting text; acquiring the voice of a to-be-identified person when the to-be-identified person reads the alerting text; identifying the acquired voice of the to-be-identified person and the stored the voiceprint model of the user, and identifying the voice of the to-be-identified person according to the stored voice model, if both the voiceprint identification and the voice identification are successfully, the identity of the to-be-identified person is accepted, and otherwise, the identity of the to-be-identified person is not accepted. According to the method provided by the invention, the method using the fixed text with the user ID and a random text are adopted, so that the required voice length for the voiceprint modeling and the voiceprint verification are greatly reduced on the premise of guaranteeing the identification performances, thereby facilitating the use of the user.

Description

technical field [0001] The invention belongs to the technical field of computers and information services, and in particular relates to a method and a system for identifying the claimed identity of a human being through voiceprint information and voice content in voice. Background technique [0002] Voiceprint Recognition Technology [0003] Voiceprint recognition (Voiceprint Recognition, VPR) technology is a kind of biometric technology, which is a technology to identify the identity of the voice speaker according to the voice parameters reflecting the speaker's physiological and behavioral characteristics in the voice. Since everyone's vocal organs (tongue, teeth, larynx, lungs, nasal cavity) are different in size and shape, voiceprint has become a means of identification to identify the speaker. [0004] The voiceprint recognition system takes the speaker's voice as input, and uses the trained specific human voiceprint model to identify the identity of the speaker of the...

Claims

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Application Information

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IPC IPC(8): G10L17/00G10L15/28G10L17/02
Inventor 成波
Owner BEIJING ZHENGYING TECH
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