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A speaker verification method and device

A speaker confirmation and speaker technology, applied in the field of speaker confirmation methods and devices, can solve the problems of large amount of data, large amount of calculation, poor robustness, etc.

Active Publication Date: 2019-11-22
TSINGHUA UNIV
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0009] In order to overcome the above-mentioned problems that require a large amount of data, a large amount of calculation, and poor robustness, or at least partially solve the above-mentioned problems, the present invention provides a method and device for speaker confirmation

Method used

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  • A speaker verification method and device
  • A speaker verification method and device

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Embodiment Construction

[0049] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0050] figure 1 The flowchart of the speaker confirmation method provided by the embodiment of the present invention includes: S1, acquiring the second voice; S2, converting the pre-acquired first voice and the second voice into corresponding first spectrogram and second voice Spectrogram; S3, using a convolutional neural network to perform feature extraction on the first spectrogram and the second spectrogram to obtain corresponding first features and second features; S4, using a time-delay neural network to Performing feature extraction on the first feature and the second feature to obtain corresponding third features and fourth features; S5, confirming the speaker acco...

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Abstract

The present invention provides a speaker confirmation method and device, including: acquiring a second voice; converting the pre-acquired first voice and the second voice into corresponding first spectrograms and second spectrograms; The product neural network performs feature extraction on the first spectrogram and the second spectrogram to obtain corresponding first features and second features; using a time-delay neural network to extract the first features and the second Perform feature extraction on features to obtain corresponding third features and fourth features; confirm the speaker according to the third features and the fourth features. In the present invention, by combining the convolutional neural network and the time-delay neural network, two feature extractions are performed on the first speech and the second speech, and the final extracted third feature is compared with the fourth feature, thereby realizing For the confirmation of the speaker, the present invention has simple calculation, strong robustness, and can achieve good recognition effect.

Description

technical field [0001] The present invention relates to the field of speech recognition, and more specifically, to a speaker confirmation method and device. Background technique [0002] Speaker verification is a method of authenticating a speaker through vocal characteristics. When confirming the speaker, the user first reserves a voice, and then inputs the verification voice. By comparing the verification voice with the voice reserved by the system, it can be judged whether the user exists. [0003] At present, the speaker confirmation method is mainly based on the statistical model, and the speaker confirmation method with better performance is generally based on the i-vector model and the PLDA model. The i-vector model establishes the following linear model for the speech signal: [0004] X=Tw+v [0005] Among them, X is the MFCC feature of the speech signal, T is a low-rank matrix, w is the sentence vector, that is, i-vector, and v is Gaussian noise. The model is i...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G10L17/02G10L17/04G10L17/18
CPCG10L17/02G10L17/04G10L17/18
Inventor 李蓝天王东
Owner TSINGHUA UNIV
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