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Audio wake-up method and device

A voice wake-up and wake-up word technology, which is applied in voice analysis, speech recognition, instruments, etc., can solve the problems of reducing the wake-up success rate and the preset threshold cannot be applied to the wake-up word judgment process, so as to improve the wake-up success rate and apply to the scene wide range of effects

Active Publication Date: 2019-01-25
西安讯飞超脑信息科技有限公司
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Problems solved by technology

Since the preset threshold is fixed, if the wake-up password changes, the preset threshold may not be applicable to the determination process of the current wake-up word, thereby reducing the wake-up success rate

Method used

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Embodiment Construction

[0023] 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.

[0024] With the development of smart home, the voice wake-up function is becoming more and more popular. Voice wake-up is mainly to wake up the smart terminal by understanding the user's voice data. At present, when realizing voice wake-up, it is usually based on the acoustic likelihoods of the corresponding wake-up words and non-wake-up words in...

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Abstract

The embodiment of the invention provides a speech wake-up method and a device, belonging to the technical field of speech recognition. The method comprises the following steps of: acquiring acoustic characteristics of awakening words in speech data; an acoustic characteristic is inputted to the wake-up determination network, and a wake-up determination result is outputted, the wake-up determination result is used for indicating whether the wake-up is successful, the wake-up determination network is trained based on the acoustic characteristics of samples, and the wake-up determination networkis used for determining the confidence level of the wake-up word. The embodiment of the invention obtains acoustic characteristics of awakening words in speech data. An acoustic characteristic is input to the wake-up determination network, and a wake-up determination result is output, and the wake-up determination result is used to indicate whether the wake-up is successful or not. Since the wake-up decision can be made by the wake-up decision network without relying on a fixed preset threshold under any user-defined wake-up word, the wake-up success rate can be improved and the wake-up process can be applied to a wider range of scenarios.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of voice recognition, and in particular, to a voice wake-up method and device. Background technique [0002] With the development of smart home, the voice wake-up function is becoming more and more popular. Voice wake-up is mainly to wake up the smart terminal by understanding the user's voice data. At present, when realizing voice wake-up, it is usually based on the acoustic likelihood of the corresponding wake-up word path and filler path in the wake-up word recognition process; if the acoustic likelihood ratio is greater than a fixed preset threshold, it is confirmed that the recognition result of the wake-up word can be letter, and successfully wake up the smart terminal. Since the preset threshold is fixed, if the wake-up password changes, the preset threshold may not be applicable to the determination process of the current wake-up word, thereby reducing the wake-up success rate...

Claims

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Application Information

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IPC IPC(8): G10L15/26G10L17/04G10L15/06
CPCG10L15/063G10L15/26G10L17/04
Inventor 吴国兵潘嘉
Owner 西安讯飞超脑信息科技有限公司
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