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Identity uniformity check method and device based on spectrogram and phoneme retrieval

A test method and spectrogram technology, applied in speech analysis, instruments, etc., to achieve the effect of improving identification efficiency and accuracy

Active Publication Date: 2018-02-09
SPEAKIN TECH CO LTD
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  • Description
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Problems solved by technology

[0004] The invention provides a method and device for checking identity identity based on spectrogram and phoneme retrieval, which solves the technical problem of searching and finding phonemes in actual voiceprint identification, and visually displays the phonemes to improve the identification efficiency of case-handling personnel

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  • Identity uniformity check method and device based on spectrogram and phoneme retrieval
  • Identity uniformity check method and device based on spectrogram and phoneme retrieval

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Embodiment Construction

[0055] The embodiment of the present invention provides an identity identity verification method and device based on spectrogram and phoneme retrieval, which solves the technical problem of searching and finding phonemes in actual voiceprint identification, and visually displays the phonemes to improve the identification of case handlers efficiency.

[0056] 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.

[0057]see figure 1 , the embodiment of the present invention provides an embodiment of an identity identity v...

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Abstract

The invention provides an identity uniformity check method and device based on a spectrogram and phoneme retrieval. The method includes the following steps: acquiring a spectrogram corresponding to asample audio file; acquiring the speech feature parameters of the sample audio file; constructing a phoneme recognition model, inputting the speech feature parameters to the phoneme recognition modeland carrying out phoneme retrieval to get qualified phonemes; and marking the qualified phonemes on the spectrogram, checking the uniformity of vowels or vowel combinations with the same identifier, and judging whether a to-be-identified person corresponding to the sample audio file passes identity verification. The technical problem on phoneme searching and finding in actual voiceprint authentication is solved. Phonemes can be displayed visually. The identification efficiency of investigators is improved.

Description

technical field [0001] The invention relates to the field of speech recognition, in particular to a method and device for checking identity identity based on spectrogram and phoneme retrieval. Background technique [0002] After adulthood, the human voice can remain relatively stable for a long time. Experiments have proved that no matter whether the speaker deliberately imitates the voice and tone of others, or whispers softly, even if the imitation is vivid, the voiceprint is always the same. Based on these two characteristics of the voiceprint, investigators can compare the acquired voiceprint of the criminal with the voiceprint of the suspect through voiceprint identification technology, quickly identify the criminal, and provide reliable evidence for the investigation and solution of the case. [0003] The existing voiceprint identity verification method is mainly to manually search for similar vowels one by one in the corresponding display spectrogram of the recorded ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10L17/06G10L25/51G10L25/24
CPCG10L17/06G10L25/24G10L25/51
Inventor 晏青
Owner SPEAKIN TECH CO LTD
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