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Method and device for conducting voice keyword search

A keyword and keyword dictionary technology, applied in the field of information processing, can solve the problems of large limitations and high costs, and achieve the effect of saving costs

Active Publication Date: 2014-11-12
TENCENT TECH (SHENZHEN) CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] To sum up, in the existing technology, the voice keyword retrieval scheme only supports the processing of a specific language, and each language has its own complete voice keyword retrieval scheme, which has great limitations and high cost

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  • Method and device for conducting voice keyword search
  • Method and device for conducting voice keyword search

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Embodiment Construction

[0037] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the embodiments and accompanying drawings.

[0038] The invention sets up a model file, configures at least two types of language models in the model file, and performs phonetic keyword retrieval based on the model file, so as to realize processing of more than two types of languages ​​in one retrieval scheme.

[0039] see figure 1 , is a schematic flowchart of a method for voice keyword retrieval in the present invention, the method pre-sets a model file, configures at least two types of language models in the model file, each type of language model includes a recognition model and a corresponding decoding model; each recognition The model recognizes the speech of a certain characteristic language, and after it is determined as the language supported by the recognition model, it is sent to t...

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Abstract

The invention discloses a method and device for conducting voice keyword search. According to the method, at least two kinds of language models are configured in a model file, and each language model comprises an identification module and a corresponding decoding model. The method comprises the step of receiving voice data to be processed, conducing voice feature extraction on the voice data to be processed, using identification models in the model file one by one for conducting language matching on the extracted voice features, determining the identification model with the highest matching rate, determining the decoding model corresponding to the identification model with the highest matching rate from the language models, using the determined decoding model to decode the extracted voice features, obtaining a decoded word identification result, matching keywords in a keyword dictionary and the word identification result, and outputting successfully-matched keywords. According to the scheme, keyword search of at least two languages can be supported, and cost is saved.

Description

technical field [0001] The invention relates to information processing technology, in particular to a method and a device for searching voice keywords. Background technique [0002] In the speech recognition technology, it is often necessary to search a piece of speech to determine whether it contains the keyword of interest. For example, for a conference recording, it is necessary to determine whether it is a computer-related conference, and determine whether the recording contains keywords such as "monitor" and "keyboard". [0003] The application of speech keyword detection is becoming more and more widespread, but most of them are carried out for Mandarin or other specific dialects, which have relatively large limitations. In the existing speech keyword retrieval scheme, keyword retrieval is only performed for a certain language, and the retrieval algorithm for this language is integrated with the language model. The detection algorithm is responsible for the entire ret...

Claims

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Application Information

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IPC IPC(8): G10L15/08
CPCG10L15/08G10L15/32G10L2015/088G10L15/28G10L15/18
Inventor 马建雄李露卢鲤张翔岳帅饶丰王尔玉孔令挥
Owner TENCENT TECH (SHENZHEN) CO LTD
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