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Voice wake-up method and system thereof

A voice wake-up and voice technology, applied in voice analysis, voice recognition, instruments, etc., can solve the problem of high false wake-up rate

Active Publication Date: 2018-06-22
苏州奇梦者科技有限公司
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  • Abstract
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Problems solved by technology

[0003] Aiming at the problem of high false wake-up rate in the current method, the present invention discloses a new voice wake-up scheme and system

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  • Voice wake-up method and system thereof

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Embodiment Construction

[0038] The implementation of the present invention will be described in detail below in conjunction with the accompanying drawings and examples, so as to fully understand and implement the process of how to apply technical means to solve technical problems and achieve technical effects in the present invention. It should be noted that, as long as there is no conflict, each embodiment and each feature in each embodiment of the present invention can be combined with each other, and the formed technical solutions are all within the protection scope of the present invention.

[0039] In addition, the steps shown in the flow diagrams of the figures may be performed in a computer system, such as a set of computer-executable instructions, and, although a logical order is shown in the flow diagrams, in some cases, the sequence may be different. The steps shown or described are performed in the order herein.

[0040] Voice wake-up is one of the core functions of smart products and serv...

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Abstract

The invention discloses a voice wake-up method and system. The method comprises the steps of step 1) acquiring input real-time audio stream data, detecting the input real-time audio stream data by using a voice detection algorithm, if voice data is found, starting a wake-up word detection algorithm, otherwise, stopping the wake-up word detection algorithm, and continuing to detect; step 2) using the wake-up word detection algorithm to analyze and detect an input voice data stream, and calculating the similarity between the voice data and a given wake-up word model; if the similarity is greaterthan a given threshold T1, considering that wake-up words are detected, starting a wake-up word confirmation algorithm, introducing the voice data of assumed wake-up words, and otherwise, continuously detecting the wake-up words until the voice data stream ends; step 3) using the wake-up word confirmation algorithm to analyze and calculate the obtained voice data stream which is judged as the wake-up words by the wake-up word detection algorithm, and calculating the confidence coefficient of the wake-up words on a voice segment.

Description

technical field [0001] The invention belongs to a voice wake-up method and a system thereof. Background technique [0002] Voice wake-up is one of the core functions of smart products and services with voice interaction capabilities. The current mainstream voice wake-up technology uses a hidden Markov model or a deep neural network to model wake-up words. Such a model can only distinguish wake words from non-wake words based on the speech signal. Since speech is continuous and gradual, there must be some speech in the critical area between wake-up words and non-wake-up words, and there are always some speeches whose pronunciation is similar to wake-up words, which will often make the model misjudgment, resulting in high False wakeup rate. At present, most products and services with voice wake-up function have serious false wake-up problems. Contents of the invention [0003] Aiming at the problem of high false wake-up rate in the current method, the invention discloses...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10L15/10G10L15/14G10L15/16G10L15/22G10L25/69
CPCG10L15/10G10L15/142G10L15/16G10L15/22G10L25/69
Inventor 张李王欢良鄢楷强唐浩元王佳珺
Owner 苏州奇梦者科技有限公司
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