Speech search method, device and system

A voice search and search result technology, applied in voice analysis, voice recognition, instruments, etc., can solve the problem of low recognition accuracy and achieve the effect of improving the accuracy of voice recognition

Inactive Publication Date: 2018-10-19
GUANGZHOU SHIYUAN ELECTRONICS CO LTD
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Problems solved by technology

[0004] Based on this, it is necessary to provide a voice search system, a voice search device and a voice search system for the problem that the traditional voice recognition method still has a low recognition accuracy.

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  • Speech search method, device and system
  • Speech search method, device and system

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Embodiment Construction

[0043] In order to make the purpose, technical solution and advantages of the present application clearer, the present 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 the present application, not to limit the present application.

[0044] The voice search method provided by this application can be applied to such as figure 1 shown in the application environment. Wherein, the terminal 102 is connected to an external communication network through a data network or a wireless network, or works offline. In the process of decoding and searching the voice signal input by the user in the pre-built WFST network, the terminal 102 can search the voice signal of the current frame according to the WFST network and the search result of the previous stage, and obtain the search result of the current stage. That is, the search pr...

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Abstract

The present invention relates to a speech search method which comprises a step of searching a speech signal of a current frame according to a WFST network and a previous stage search result and obtaining a search result at a current stage, a step of resetting the search state of the WFST network if the current stage search result is matched with preset template information, a step of carrying outpre-search through the WFST network with the resetting of the search state according to the preset template information matched with the current stage search result to obtain a template path network,and a step of searching a speech signal of a next frame according to the template path network and the current stage search result until the search results of speech signals of all frames are outputted. The invention also discloses a speed search system. By resetting the search state of the WFST network when the current stage search result is matched with the preset template information, thus thepre-search is carried out in the WFST network with the resetting of the search state according to the preset template information, the template path network is obtained, and the search of the speech signal of the next frame is continued according to the template path network. The accuracy of speech recognition is greatly improved.

Description

technical field [0001] The invention relates to the technical field of voice recognition, in particular to a voice search method, device and system. Background technique [0002] With the continuous innovation of information technology, various smart devices are also being updated rapidly. Speech recognition technology, one of the popular technologies of many smart devices, is a typical representative of data information applications. Speech recognition technology can recognize a given speech into corresponding text information. Therefore, it is widely used in various intelligent interactive devices, such as the voice wake-up function and voice assistant functions of intelligent interactive devices. [0003] The traditional speech recognition method generally extracts the features of the input speech signal frame by frame, and calculates the corresponding classification probability according to the acoustic model. Complete the search of all speech input frames, and obtain ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10L15/02G10L15/08G10L15/26
CPCG10L15/02G10L15/08G10L15/26G10L2015/081
Inventor 李忠杰
Owner GUANGZHOU SHIYUAN ELECTRONICS CO LTD
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