Voiceprint identification method and related device
An identification method and voiceprint technology, which can be used in speech analysis, instruments, etc., to solve problems such as incorrect identification of speakers and different speakers.
Active Publication Date: 2020-05-05
SPEAKIN TECH CO LTD
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[0003]
The present application provides a voiceprint identification method and a related device, which are used to solve the problem that in the existing voiceprint identification method, when the speaker has a slight deviation between the calculated deviation value and the preset range due to emotional fluctuations, etc., so that the A technical issue where the same speaker was misidentified as a different speaker
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[0041] In order to enable those skilled in the art to better understand the solution of the application, the technical solution in the embodiment of the application will be clearly and completely described below in conjunction with the drawings in the embodiment of the application. Obviously, the described embodiment is only It is a part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.
[0042] For ease of understanding, see figure 1 , an embodiment of a voiceprint identification method provided by the present application, including:
[0043] Step 101, acquire sample speech.
[0044] It should be noted that the sample voice can be obtained through a voice recording device.
[0045]Step 102, extracting 4 formants of the target phoneme in the sample speech.
[0046] ...
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The invention discloses a voiceprint identification method and a related device. The deviation of formant frequency between a target phoneme of a sample voice and a target phoneme of a detection voiceis calculated to obtain four deviation values; when the deviation value does not satisfy a preset formant frequency deviation standard, the difference between the deviation value and the upper limitvalue of the formant frequency corresponding to the deviation value is calculated, whether the difference is in a preset range or not is judged; if the result is positive, the audio time range of thetarget phoneme in the sample voice is adjusted, until the condition is satisfied; outputted is a voiceprint identification result that the target phoneme of the sample voice and the target phoneme ofthe detection voice are belonged to one person; if the result is negative, outputted is a voiceprint identification result that the target phoneme of the sample voice and the target phoneme of the detection voice are belonged to different persons; and the technical problem that in an existing voiceprint identification method, due to emotional fluctuation and other reasons, deviation value obtainedthrough calculation slightly deviates from a preset range, and then original same speaker is mistakenly identified as different speakers is solved.
Description
technical field [0001] The present application relates to the technical field of voiceprint identification, in particular to a voiceprint identification method and a related device. Background technique [0002] Voiceprint identification refers to the process of making a conclusion about whether the two are the same by comprehensively analyzing and comparing the speech acoustic features of an unknown or uncertain speaker with those of a known speaker. In the existing voiceprint identification method, the deviation value is generally obtained by comparing the same phoneme in the test material and the sample, and calculating the formant frequency deviation of the same phoneme. If the calculated deviation value is within the preset range, It is considered that the phoneme in the sample speech is the same speaker as the phoneme in the test material sample, and vice versa, it is a different speaker. However, there is a certain situation, when the speaker is due to emotional fluct...
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IPC IPC(8): G10L17/00G10L17/02
CPCG10L17/00G10L17/02Y02D30/70
Inventor 郑琳琳
Owner SPEAKIN TECH CO LTD