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Speech recognition method and speech recognition device

A speech recognition and recognition technology, applied in speech recognition, speech analysis, instruments, etc., can solve the problems of low accuracy and small language model, insufficient accuracy of speech recognition, and loss of speech information in word maps, so as to improve speech recognition Accuracy, optimized speech recognition speed, and the effect of avoiding cumulative errors

Active Publication Date: 2016-04-20
BAIDU ONLINE NETWORK TECH (BEIJIBG) CO LTD
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Problems solved by technology

[0004] However, since this method uses a small language model with low accuracy in the first pass of decoding, the errors accumulated through multiple checking and scoring will lead to the loss of part of the speech information in the word map
In this way, even if the large language model is used to re-score from the word map, the previously lost information cannot be recovered, which leads to the problem that the accuracy of speech recognition is not high enough

Method used

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  • Speech recognition method and speech recognition device
  • Speech recognition method and speech recognition device
  • Speech recognition method and speech recognition device

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Embodiment Construction

[0026] The application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain related inventions, rather than to limit the invention. It should also be noted that, for the convenience of description, only the parts related to the related invention are shown in the drawings.

[0027] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and embodiments.

[0028] figure 1 An exemplary system architecture 100 to which embodiments of the speech recognition method or speech recognition apparatus of the present application can be applied is shown.

[0029] like figure 1 As shown, the system architecture 100 may include terminal ...

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Abstract

The invention discloses a speech recognition method and a speech recognition device. A specific embodiment of the method comprises the following steps: segmenting speech information to be recognized into multiple frames of speech segments; performing acoustic model scoring and language model score-checking on the speech segments frame by frame through a preset decoding network; and determining a word sequence corresponding to at least one decoding path in the decoding network as the speech recognition result based on the score result, wherein first language model score-checking and second language model score-checking are carried out in sequence during language model score-checking on a frame of speech segment. By implementing the technical scheme, accurate and efficient speech recognition is realized.

Description

technical field [0001] The present application relates to the field of computer technology, specifically to the field of artificial intelligence technology, and especially to a voice recognition method and device. Background technique [0002] Speech recognition technology is a technology that converts the lexical content in human speech into computer-readable input (such as keystrokes, binary codes, or character sequences). In the speech recognition system, the decoder is a very important component. The decoder can find the optimal path in the decoding network by loading the trained acoustic model and language model, and use the corresponding text information as the recognition result. [0003] In the current speech recognition system, in order to obtain a higher recognition rate, a larger language model is used for checking and scoring as much as possible. However, if a super-large language model is directly used for checking and scoring, it will cause a large loss to th...

Claims

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Application Information

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IPC IPC(8): G10L15/04G10L15/183
CPCG10L15/04G10L15/183
Inventor 黄辰钱胜
Owner BAIDU ONLINE NETWORK TECH (BEIJIBG) CO LTD
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