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Equipment wakeup related method and device, and story telling machine

A device and wake-up word technology, applied in speech analysis, speech recognition, instruments, etc., can solve the problem of low wake-up performance, achieve reliable noise reduction, improve wake-up performance, and reliable startup effect.

Pending Publication Date: 2021-12-03
ALIBABA GRP HLDG LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] This application provides a device wake-up method to solve the problem of low wake-up performance under highly noisy human voice interference in the prior art

Method used

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  • Equipment wakeup related method and device, and story telling machine
  • Equipment wakeup related method and device, and story telling machine
  • Equipment wakeup related method and device, and story telling machine

Examples

Experimental program
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Effect test

no. 1 example

[0129] Please refer to figure 1 , which is a flow chart of an embodiment of the device wake-up method of the present application. The subject of execution of the method includes but is not limited to a smart story machine, and may also be other devices with a wake-up function, such as a smart speaker, a smart repeater, etc. In this embodiment, the story machine is taken as an example to illustrate the method. In this embodiment, the method may include the following steps:

[0130] Step S101: Determine the wake-up word probability of the last speech frame.

[0131] The story machine has a voice wake-up function, and the story machine can be woken up directly by voice without the need for a user to press a button. The story machine can collect voice data through multiple microphones (microphone arrays). A piece of voice data can include multiple voice frames, and one voice frame can be a section of 10ms voice data. The story machine can process each voice frame in turn.

[01...

no. 2 example

[0168] In the foregoing embodiments, a method for waking up a device is provided. Correspondingly, the present application also provides a device for waking up a device. The device corresponds to the embodiment of the above-mentioned method.

[0169] The parts in this embodiment that are the same as those in the first embodiment will not be described again, please refer to the corresponding parts in the first embodiment. A device wake-up device provided in this application includes:

[0170] A wake-up word probability determination unit is used to determine the wake-up word probability of the last speech frame;

[0171] The filter coefficient adjustment unit is used to adjust the filter coefficient according to the wake-up word probability and the last voice frame;

[0172] The human voice noise suppression unit is used to perform voice enhancement processing on the current voice frame according to the adjusted filter coefficient, so as to suppress the human voice noise othe...

no. 3 example

[0182] The application also provides a story machine. Since the device embodiment is basically similar to the method embodiment, the description is relatively simple, and for related parts, please refer to part of the description of the method embodiment. The device embodiments described below are illustrative only.

[0183] A story machine of this embodiment, the story machine includes: a processor and a memory; the memory is used to store a program for realizing the device wake-up method, and after the device is powered on and runs the program of the method through the processor, it executes the following Steps: Determine the wake-up word probability of the previous speech frame; adjust the filter coefficient according to the wake-up word probability and the previous speech frame; perform speech enhancement processing on the current speech frame according to the adjusted filter coefficient, to suppress the target sound in the current speech frame Human voice noise other tha...

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Abstract

The invention discloses an equipment wakeup related system, method, device and equipment. The equipment wake-up method comprises the following steps: determining a wake-up word probability of a previous voice frame; adjusting a filtering coefficient according to the wakeup word probability and the previous voice frame; performing voice enhancement processing on the current voice frame according to the adjusted filter coefficient so as to suppress a human voice noise outside the target sound source in the current voice frame; and recognizing a wakeup word according to the current voice frame after the human voice noise is suppressed so as to adjust the equipment to a wakeup state. By adopting the processing mode, the wakeup feedback of the previous voice frame is combined, and the coefficients of the beam forming filter are updated so that the target voice and the human voice noise can be distinguished, and a reliable noise reduction effect is obtained; and therefore, the wakeup performance of the equipment under highly noisy human voice interference can be effectively improved.

Description

technical field [0001] The present application relates to the field of automation control technology, in particular to a device wake-up system, method and device, voice conference minutes system, method and device, service startup system, method and device, story machine, smart speaker, and electronic equipment. Background technique [0002] In recent years, with the advancement of speech recognition technology, intelligent story machines with voice wake-up function have been widely used. Since the existing acoustic model technology cannot effectively overcome the influence of foam noise and human voice interference, the voice wake-up effect will drop sharply under highly noisy human voice interference. [0003] Signal-to-noise ratio and speech system performance can be greatly improved based on microphone array signal processing technology. Beamforming is a commonly used array signal processing algorithm. It has the advantages of small amount of calculation and easy deploy...

Claims

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Application Information

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IPC IPC(8): G10L15/22G10L15/26G10L15/02G10L21/0208G10L25/84
CPCG10L15/22G10L15/26G10L15/02G10L21/0208G10L25/84G10L2015/223
Inventor 刘章田彪李昀王子腾纳跃跃
Owner ALIBABA GRP HLDG LTD
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