Recognition method and device for voice phoneme

A phoneme recognition and recognition method technology, applied in speech recognition, speech analysis, instruments, etc., can solve the problem of low efficiency of phoneme segmentation, and achieve the effect of reducing the scale of operations

Active Publication Date: 2019-05-14
BEIJING GRIDSUM TECH CO LTD
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0005] In view of this, the present invention provides a speech phoneme recognition method and device, the main purpose of which is to solve the problem of low efficiency of phoneme segmentation or local optimal solution during speech recognition

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  • Recognition method and device for voice phoneme
  • Recognition method and device for voice phoneme
  • Recognition method and device for voice phoneme

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Embodiment Construction

[0068] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0069] Embodiments of the present invention provide a method for recognizing speech phonemes, such as figure 1 As shown, the method includes:

[0070] 101. Input the speech to be recognized into the phoneme recognition model, and obtain the expected result corresponding to the speech to be recognized according to the output result.

[0071] The speech to be recognized described in the embodiment of the present invention can be any...

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Abstract

The invention discloses a recognition method and device for a voice phoneme, and relates to the technical field of voice recognition. A main purpose is to solve a problem of low phoneme segmentation efficiency or a locally optimal solution during voice recognition. According to the main technical scheme provided in the invention, the recognition method comprises the following steps of inputting ato-be-recognized voice into a phoneme recognition model, and obtaining, according to an output result, an expected result corresponding to the to-be-recognized voice, wherein the phoneme recognition model identifies each phoneme in the to-be-recognized voice through multiple neural network models and a hidden Markov model; training a model parameter in the phoneme recognition model according to the expected result until a rate of change of an output result of a phoneme model is less than a preset threshold value; and determining an output result with a rate of change less than the preset threshold value as a final phoneme recognition result corresponding to the to-be-recognized voice. The recognition method is mainly applied to a process of recognizing a sound.

Description

technical field [0001] The invention relates to the technical field of speech recognition, in particular to a speech phoneme recognition method and device. Background technique [0002] In the field of speech recognition, a phoneme (phone) is the smallest unit of speech. In order to improve the accuracy of recognition, the recognition degree of each phoneme must be improved first. [0003] At present, there are two mainstream methods for training phoneme models: one is the Gaussian mix-ture-hidden Markov model (GMM-HMM), the neural network-hidden Markov model DNN- HMM. Among them, GMM-HMM mainly uses HMM to fit the change state of the frame corresponding to the phoneme, and then uses GMM or DNN to converge the frame, and uses viterbi to decode when recognizing, and can segment audio based on time frame. [0004] In the process of implementing the above invention, the inventor found that in the prior art, especially in the phoneme model for recognizing pinyin of Chinese cha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10L15/16G10L15/14G10L15/02
Inventor 姜珂
Owner BEIJING GRIDSUM TECH CO LTD
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