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Voice recognition method and device

A speech recognition and speech signal technology, applied in speech recognition, speech analysis, instruments, etc., can solve the problem of low speech signal recognition rate, and achieve the effect of small update range, fast update speed, and low correction recognition rate

Inactive Publication Date: 2016-08-17
LETV HLDG BEIJING CO LTD +1
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Problems solved by technology

[0007] Embodiments of the present invention provide a voice recognition method and device to solve the problem of low recognition rate of voice signals in the prior art

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Embodiment Construction

[0026] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0027] The voice recognition method and device provided by the embodiments of the present invention can be applied to scenarios such as voice navigation and voice playback control. In the existing speech recognition methods, the language model interpolation method and parallel decoding method are usually used to estimate the probability of the wor...

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Abstract

The embodiment of the invention provides a voice recognition method and device. The voice recognition method comprises the steps that candidate word strings corresponding to voice signals are acquired; a field language model is scheduled, and the corresponding probability enhancement coefficient of the candidate word strings in the field language model is determined; a basic language model is scheduled, and the basic matching probability of the candidate word strings in the basic language model is determined; the probability enhancement coefficient is combined with the basic matching probability so that the total matching probability of the candidate word strings is acquired; and the probability of a word sequence formed by each candidate word string is calculated according to the total matching probability of each candidate word string, and language texts corresponding to the voice signals are generated according to the word sequence of the highest probability. According to the voice recognition method and device, the general speaking habits in the basic language model are comprehensively considered, and the specific wording habits of the field language model are also considered so that the higher recognition rate of the voice signals can be provided.

Description

technical field [0001] The embodiments of the present invention relate to the field of voice technology, and in particular, to a voice recognition method and device. Background technique [0002] The purpose of a language model (Language Model, LM) is to establish a distribution that can describe the probability of a given word sequence appearing in a language. In the field of speech recognition, the language model is used to recognize the word sequence corresponding to the speech signal to be recognized. [0003] Existing methods for speech signal recognition through language models mainly include language model interpolation and parallel decoding: [0004] The interpolation method of the language model is to interpolate the domain language model corresponding to each domain into the basic language model, and then recognize the speech signal according to the interpolated basic language model. The language model is retrained, the update efficiency is low, and it cannot be ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10L15/06
CPCG10L15/06G10L15/063
Inventor 王育军
Owner LETV HLDG BEIJING CO LTD
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