Voice waking-up method and system thereof

A voice wake-up and voice technology, applied in voice analysis, voice recognition, instruments, etc., can solve problems such as low false alarm rate, achieve the effects of improving adaptability, improving wake-up performance, and improving actual user experience

Inactive Publication Date: 2018-12-18
苏州奇梦者科技有限公司
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  • Abstract
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Problems solved by technology

[0005] Based on this, it is necessary to address the above-mentioned premise of controlling the low false alarm rate, how to reduce the false rejection rate in various complex sce

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  • Voice waking-up method and system thereof

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Embodiment Construction

[0031] 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 accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0032] It should be noted that when an element is referred to as being “disposed on” another element, it may be directly on the other element or there may also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and similar expressions are used herein for purposes of illustration only and are not intended to represent the only embodiments.

[0033] Unless otherwise defined, all technical and scientific ter...

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Abstract

The invention relates to a voice waking-up method and a system thereof, wherein the method comprises the following steps of performing an enframing windowing operation on original voice data for acquiring a voice frame which corresponds with original voice, and extracting acoustic characteristic information of the voice frame; calculating the acoustic characteristic information for obtaining a deep neural network classification model; recording field voice data, extracting the acoustic characteristic information which corresponds with the field voice data, and inputting the acoustic characteristic information which corresponds with the field voice data into the deep neural network classification model, thereby obtaining posterior probability information; and comparing the posterior probability information with a preset threshold, and when the confidence is higher than the preset threshold, waking up voice recording equipment. The voice waking-up method and the system thereof have advantages of effectively improving waking-up performance in a noise scene, performing simulation such as voice speed, pitch and sound volume on the original data, and effectively improving adaptability ofthe waking-up system to different speakers.

Description

technical field [0001] The invention relates to the field of voice recognition, in particular to a voice wake-up method and system. Background technique [0002] Voice wake-up technology is an important branch in the field of voice recognition. It is widely used in voice interactive systems such as mobile terminals, smart homes, and car navigation, so that users can wake up devices with voice commands. More specifically, the task of the voice wake-up system is to automatically detect a predefined wake-up word from the received voice in the background without interruption, which is generally called keyword detection (Keyword Spotting, KWS). When the system detects When the corresponding keyword is selected, the device will wake up and enter a specific working state. [0003] At present, two indicators are mainly used to evaluate the performance of a voice wake-up system: one is the false rejection rate (FalseReject Rate, FRR), which refers to the probability that the system ...

Claims

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Application Information

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IPC IPC(8): G10L15/22G10L15/16G10L15/20
CPCG10L15/16G10L15/20G10L15/22G10L2015/223
Inventor 王欢良鄢楷强张宏阳沈旭晖马殿昌李显光
Owner 苏州奇梦者科技有限公司
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