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Method for updating voiceprint model

A technology of model update and voiceprint, which is applied in speech analysis, instruments, etc., can solve the problem that the voiceprint model deviates from the characteristics of the target speaker's voiceprint, and achieve the effect of improving accuracy

Inactive Publication Date: 2017-12-01
GUANGDONG QIMING TECHNOLOGY DEVELOPMENT CO LTD
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AI Technical Summary

Problems solved by technology

[0003] The present invention provides a method for updating a voiceprint model, which solves the problem that the updated voiceprint model deviates from the target speaker in the prior art when a false speaker whose voiceprint characteristics are similar to the target speaker continuously impersonates within a short period of time. The problem of voiceprint characteristics

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  • Method for updating voiceprint model

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Embodiment Construction

[0030] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Based on the embodiments of the present invention, those skilled in the art can obtain the All other embodiments belong to the protection scope of the present invention.

[0031] see figure 1 , is a flowchart of a method for updating a voiceprint model according to an embodiment of the present invention, and the method includes the following steps:

[0032] S1: receiving user voice data;

[0033] Specifically, the voice data may be recorded data when the user talks, chats, or logs in, or may be voice data recorded by the user himself.

[0034] S2: Use the zero-regulation method to authenticate the current user, and the authenticated user is the target speaker;

[0035] S3: Screening the voice data of the target speaker by using a time clustering method to obtain up...

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Abstract

The invention discloses a method for updating a voiceprint model. The method comprises a step of receiving user voice data, a step of using a zero normalization method to carry out identity authentication on a current user, and taking a user with successful authentication as a target speaker, a step of using a time cluster time to screen voice data of the target speaker and obtaining screened target speaker model updating data, a step of using the target speaker model updating data and original voiceprint model training data to train a new voiceprint model again, and using the new voiceprint model to update the original voiceprint model. According to the method, the continuous false recognition of a speaker similar to the target speaker in a short time is prevented, a condition that the identity authentication of the target speaker can not be carried out caused by the continuous updating of a target speaker voiceprint model is prevented, the inconsistent distribution of model matching degrees caused by different voiceprint model updating degrees of different users is prevented, and thus the accuracy of updating the target speaker voiceprint model is improved.

Description

technical field [0001] The invention relates to the technical field of voiceprint recognition, in particular to a method for updating a voiceprint model. Background technique [0002] The voiceprint feature is one of the important biological characteristics of the human body and has strong individual specificity. It is often used in voiceprint recognition, voiceprint authentication and other fields as a feature of identity authentication. Therefore, it is possible to characterize different individuals by establishing a voiceprint model, and then use the voiceprint model to identify different individuals. At present, the common problem faced by the application of the voiceprint model is the acquisition of training data. In general, the training data obtained by the voiceprint model is very small. Therefore, the accuracy and adaptability of the trained model are poor. In order to increase the practicability of the voiceprint model, it is necessary to continuously update the m...

Claims

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Application Information

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IPC IPC(8): G10L17/04G10L17/00
CPCG10L17/00G10L17/04
Inventor 杨有科李权冯国梁谢泽鑫邹月荣郭清霞钟胜根
Owner GUANGDONG QIMING TECHNOLOGY DEVELOPMENT CO LTD
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