Method for establishing speech recognition model, speech recognition method and system

A speech recognition model and language model technology, applied in speech recognition, speech analysis, instruments, etc., can solve problems such as single scalability, inflexible use, and non-support for multi-grammar construction, and achieve the effect of flexible speech recognition technology solutions

Active Publication Date: 2019-01-18
BAIDU ONLINE NETWORK TECH (BEIJIBG) CO LTD
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0003] In the existing local speech recognition technology solutions, the speech is constructed based on a vocabulary and grammar format given by the user, which is single and has low scalability, does not support multi-grammar construction, does not support class models, etc., and is not flexible enough to use

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  • Method for establishing speech recognition model, speech recognition method and system
  • Method for establishing speech recognition model, speech recognition method and system
  • Method for establishing speech recognition model, speech recognition method and system

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Embodiment Construction

[0052] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments 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 creative efforts fall within the protection scope of this application.

[0053] figure 1 A flow chart of a method embodiment for establishing a speech recognition model according to the present invention, such as figure 1 shown, including the following steps:

[0054] Step S11, reading and parsing each grammar file, constructing each grammar network;

[0055] Step S12, read the acoustic syllable mapping relationship table, and ...

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Abstract

The invention discloses a method for establishing a speech recognition model, a speech recognition method and a system. The method for establishing the speech recognition model comprises the steps ofreading and analyzing each grammar file and constructing a network of each grammar. Reading an acoustic syllable mapping relation table and expanding the network of each grammar into a syllable network respectively. The syllable networks are combined and minimized to form a phoneme decoding network; A speech recognition model is formed by using the phoneme decoding network and a language model. Byapplying the scheme of the invention, the expansion type is strong and supports N-Gram language model, supporting class model, flexible use, suitable for embedded recognizer in vehicle environment

Description

【Technical field】 [0001] The invention relates to the technical field of speech processing, in particular to a method for establishing a speech recognition model, a speech recognition method and a system. 【Background technique】 [0002] Although the network is becoming more and more popular, there are still many cases where there is no network or the network is relatively weak. At this time, it is difficult to use the voice recognition service in the cloud, and for some uncomplicated voice recognition commands or short queries, put the local embedded More convenient in the recognizer, the response will be faster, and it will be more convenient to use. [0003] In the existing local speech recognition technology solutions, the speech is constructed based on a vocabulary and grammar format given by the user, which is single and has low scalability. It does not support multi-grammar construction, does not support class models, etc., and is not flexible enough to use. 【Content...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10L15/14G10L15/02G10L15/16G10L15/197
CPCG10L15/02G10L15/144G10L15/16G10L15/197G10L2015/025G10L2015/027G10L15/05G10L15/063G10L15/19
Inventor 王知践钱胜
Owner BAIDU ONLINE NETWORK TECH (BEIJIBG) CO LTD
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