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Voice keyword recognition method and device, electronic equipment and storage medium

A recognition method and keyword technology, which are applied in the field of electronic equipment, storage media, devices, and speech keyword recognition methods, can solve the problems of low recognition accuracy of speech keywords, improve response accuracy, avoid misjudgment problems, Optimizing the effect of user experience

Active Publication Date: 2019-12-24
IFLYTEK CO LTD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] Embodiments of the present invention provide a voice keyword recognition method, device, electronic equipment, and storage medium to solve the existing problem of low accuracy of voice keyword recognition

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  • Voice keyword recognition method and device, electronic equipment and storage medium
  • Voice keyword recognition method and device, electronic equipment and storage medium
  • Voice keyword recognition method and device, electronic equipment and storage medium

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Embodiment Construction

[0054] 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.

[0055] As one of the most natural communication methods for human beings, voice is the future trend of human-computer interaction. In the voice wake-up scenario, the user can wake up the electronic device by uttering a keyword, so that the electronic device enters a state of waiting for a voice command, or makes the electronic device directly exec...

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Abstract

Embodiments of the invention provide a voice keyword recognition method and device, electronic equipment and a storage medium. The method comprises the following steps of extracting an acoustic stateposterior probability distribution vector of each frame in voice data corresponding to a to-be-recognized word, wherein the acoustic state posterior probability distribution vector of any frame comprises a posterior probability of any frame relative to a plurality of acoustic states; and inputting the acoustic state posterior probability distribution vector of each frame in the voice data to a keyword recognition model so as to obtain a keyword recognition result corresponding to the to-be-recognized word and output by the keyword recognition model, wherein the keyword recognition model is obtained by training based on a sample acoustic state posterior probability distribution vector of each sample frame in a sample word and a keyword identification of the sample word. According to the method, the device, the electronic equipment and the storage medium, the recognition precision can be improved, the misjudgment problem of similar words is avoided, the response accuracy is improved, andthe user experience is optimized.

Description

technical field [0001] The invention relates to the technical field of voice recognition, in particular to a voice keyword recognition method, device, electronic equipment and storage medium. Background technique [0002] With the development of science and technology, voice wake-up technology is more and more widely used in electronic equipment, which greatly facilitates the user's operation of electronic equipment, allowing users to interact with electronic equipment without manual interaction. The corresponding processing module in the electronic device is activated. [0003] In existing voice wake-up scenarios, it is usually necessary to support dozens or even hundreds of keywords. The current voice keyword recognition method usually calculates the confidence score with the acoustic state as the unit, and compares the total score with the total score threshold to determine the recognition result. Applying the recognition results obtained by the above method to voice wa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10L15/26G10L15/02G10L25/30G06N3/04G06N3/08
CPCG10L15/26G10L15/02G10L25/30G06N3/084G06N3/045
Inventor 申凯张滔
Owner IFLYTEK CO LTD
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