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Method, device and computer equipment for reducing false wake-up of intelligent voice equipment

An intelligent voice and false wake-up technology, applied in speech analysis, speech recognition, instruments, etc., can solve the problem of increasing the false wake-up of intelligent voice devices

Active Publication Date: 2020-12-15
深圳市友杰智新科技有限公司
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  • Abstract
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Problems solved by technology

[0003] The main purpose of this application is to provide a method, device, computer equipment, and storage medium for reducing false wake-up of smart voice devices, aiming to solve the problem that the wake-up words in the existing voice wake-up technology applied to smart voice devices all use a fixed threshold In this way, when the smart voice device is in an environment with excessive residual echo for a long time, since the wake-up word threshold applied to the smart voice device is always fixed, this will greatly increase the error of the smart voice device by the residual echo. Technical issues with the possibility of awakening

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  • Method, device and computer equipment for reducing false wake-up of intelligent voice equipment

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[0052] It should be understood that the specific embodiments described here are only used to explain the present application, not to limit the present application.

[0053] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present application are only used to explain the relationship between the components in a certain posture (as shown in the drawings). If the specific posture changes, the relative positional relationship, movement conditions, etc., the directional indication will also change accordingly, and the connection may be a direct connection or an indirect connection.

[0054] refer to figure 1 , the method for reducing false wake-up of intelligent voice equipment according to an embodiment of the present application, including:

[0055] S1: Obtain the echo channel data x(l) and the microphone channel data d(l) of the intelligent voice device;

[0056] S2: Process the echo channel data x(l)...

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Abstract

The invention discloses a method and a device for reducing false awakening of intelligent voice equipment, and computer equipment. The method comprises the following steps: acquiring echo channel dataand microphone channel data of an intelligent voice equipment; processing the echo channel data and the microphone channel data to obtain an echo channel frequency domain signal and a microphone channel frequency domain signal; performing echo cancellation on the microphone channel frequency domain signal through an echo cancellation algorithm to obtain an echo-cancelled microphone channel frequency domain signal; calculating a first mutual interference coefficient of the microphone channel frequency domain signal after echo cancellation and the echo channel frequency domain signal; acquiringa specified data value corresponding to the microphone channel frequency domain signal after echo cancellation according to a preset rule; judging whether the first mutual interference coefficient isgreater than a preset first threshold value or not, and judging whether the specified data value is smaller than a preset second threshold value or not; and if yes, adjusting the wake-up threshold ofa wake-up word to a preset specified wake-up threshold. The possibility that the intelligent voice equipment is mistakenly awakened can be effectively reduced.

Description

technical field [0001] The present application relates to the technical field of voice processing, in particular to a method, device and computer equipment for reducing false wake-up of intelligent voice equipment. Background technique [0002] Speech recognition technology has made remarkable progress in recent years, and this technology has entered various fields such as industry, home appliances, and smart homes. The voice wake-up technology containing wake-up words is a form of speech recognition technology, which does not directly contact the hardware device, and the device can be woken up or operated by the voice containing the wake-up word. Existing smart voice devices with loudspeakers, such as smart speakers, vehicle-mounted mobile phone holders, or voice robots, also use the voice wake-up technology that includes wake-up words to implement the playback interruption function, and the existing smart voice devices The wake-up word in the voice wake-up technology adop...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G10L21/0208G10L21/0232G10L21/0264G10L15/22G10L15/20
CPCG10L15/20G10L15/22G10L21/0208G10L21/0232G10L21/0264G10L2015/223G10L2021/02082
Inventor 陈俊彬王广新杨汉丹
Owner 深圳市友杰智新科技有限公司
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