Method and system for optimizing wake-up performance based on mode switching

A mode switching and mode technology, applied in speech analysis, speech recognition, instruments, etc., can solve the problems of decreased wake-up rate, increased false wake-up, and inability to meet user performance indicators, so as to improve the wake-up rate and reduce false wake-up rate. Effect

Active Publication Date: 2022-06-24
BEIJING UNISOUND INFORMATION TECH
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Problems solved by technology

[0003] At present, the way of distinguishing effective wake-up and invalid wake-up depends entirely on a single reference threshold obtained from experiments based on the algorithm level, and there is only a common wake-up mode corresponding to this reference threshold. If the single reference threshold is selected too large, it will lead to a higher wake-up rate. On the contrary, if it is too small, it will lead to increased false wake-ups, which cannot meet the increasingly stringent performance indicators of users.

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  • Method and system for optimizing wake-up performance based on mode switching
  • Method and system for optimizing wake-up performance based on mode switching
  • Method and system for optimizing wake-up performance based on mode switching

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Embodiment Construction

[0056] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, but not to limit the present invention.

[0057] figure 1 A flowchart of a method for optimizing wake-up performance based on mode switching in an embodiment of the present invention, as shown in figure 1 As shown, the method can be implemented as the following steps S11-S14:

[0058] In step S11, a wake-up word is obtained;

[0059] In step S12, a wake-up mode of the device to be woken up is set according to the application scenario, and the wake-up mode includes a secondary wake-up mode, a deep sleep mode and a normal wake-up mode;

[0060] In step S13, determine the secondary threshold corresponding to the secondary wake-up mode, the sleep threshold corresponding to the deep sleep mode, and the standard threshold c...

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Abstract

The present invention discloses a method and system for optimizing wake-up performance based on mode switching. The method includes: acquiring a wake-up word; mode and normal wake-up mode; determine the secondary threshold corresponding to the secondary wake-up mode, the sleep threshold corresponding to the deep sleep mode, and the standard threshold corresponding to the normal wake-up mode; according to the wake-up word, the secondary threshold, and the sleep threshold and the standard threshold control the device to be woken up to switch between the three modes. Compared with a single normal wake-up mode, the scheme disclosed by the present invention increases the wake-up rate by adding the second wake-up mode, and reduces the false wake-up rate by adding the deep sleep mode, which can meet the increasingly stringent performance indicators of users.

Description

technical field [0001] The present invention relates to the technical field of speech recognition, in particular to a method and system for optimizing wake-up performance based on mode switching. Background technique [0002] Wake-up rate and false wake-up rate are two important indicators of speech recognition products, both of which are directly related to the "awakening threshold". The usual implementation is to select a fixed reference arousal threshold according to the experimental results for a specific wake-up word. Based on this threshold, the recognition result of the device to be woken up is classified as follows: if the confidence of the recognition result is greater than the threshold, it is considered to be a valid wake-up; otherwise, it is considered to be an invalid wake-up. [0003] At present, the method of judging effective wake-up and invalid wake-up completely relies on a single reference threshold obtained from experiments at the algorithm level, and th...

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): G10L15/22G06F9/4401
CPCG10L15/22G06F9/4418G10L2015/223
Inventor陈晓松尚金龙
OwnerBEIJING UNISOUND INFORMATION TECH