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Speech recognition method and device, and terminal equipment

A speech recognition and speech recognition model technology, applied in speech recognition, speech analysis, instruments, etc., can solve the problems of low recognition accuracy and achieve high recognition accuracy

Pending Publication Date: 2020-11-17
WUHAN TCL CORP RES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the embodiment of the present invention provides a speech recognition method, device and terminal equipment to solve the problem of low recognition accuracy of the trained speech recognition model in the prior art when encountering complex speech

Method used

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  • Speech recognition method and device, and terminal equipment
  • Speech recognition method and device, and terminal equipment
  • Speech recognition method and device, and terminal equipment

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Embodiment Construction

[0021] In the following description, specific details such as specific system structures and technologies are presented for the purpose of illustration rather than limitation, so as to thoroughly understand the embodiments of the present invention. It will be apparent, however, to one skilled in the art that the invention may be practiced in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

[0022] In order to illustrate the technical solutions of the present invention, specific examples are used below to illustrate.

[0023] figure 1 It is a schematic flow chart of a speech recognition method provided by an embodiment of the present invention, and is described in detail as follows:

[0024] S101: Calculate the first conditional probability of the sentence according to the pre-train...

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Abstract

The invention is suitable for the technical field of speech recognition, and provides a speech recognition method and device, and terminal equipment, and the method comprises the steps: calculating afirst conditional probability of a sentence according to a pre-trained language model; adjusting a first loss function of a speech recognition model according to the first conditional probability to obtain a second loss function; and training the speech recognition model by using the second loss function, and performing speech recognition by using the trained speech recognition model. According tothe method, the speech recognition accuracy can be improved.

Description

technical field [0001] The invention belongs to the technical field of voice recognition, and in particular relates to a voice recognition method, device and terminal equipment. Background technique [0002] The purpose of speech recognition technology is to recognize the input speech signal and output the text that the computer can read, which can be applied to smart home, smart car, smart customer service robot, etc. With the development of deep learning technology, speech recognition technology has changed from traditional machine learning Gaussian Mixture Model-Hidden Markov Model (GMM-HMM) to one based on Deep Neural Networks (DNN). technology. DNN-based speech recognition technology is divided into two types: one is to use DNN to replace the original GMM part, namely deep neural network and hidden Markov model (Deep Neural Networks-Hidden Markov Model, DNN-HMM), the other The other is an end-to-end speech recognition technology based on a deep neural network. [000...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10L15/06
CPCG10L15/063G10L15/26
Inventor 陈明
Owner WUHAN TCL CORP RES CO LTD
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