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Multi-channel I2S voice awakening low-power-consumption circuit data processing method and device

A data processing device and voice wake-up technology, applied in speech analysis, voice recognition, instruments, etc., can solve the problems of CPU power consumption and high power consumption, and achieve the effect of reducing power consumption and avoiding the number of invalid wake-ups.

Pending Publication Date: 2020-08-25
安创生态科技(深圳)有限公司
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The CPU is a component that consumes a lot of power in the system, and the general-purpose speech recognition engine generally adds a lot of circuits that are not related to speech recognition, so this implementation method consumes a certain amount of CPU power consumption

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  • Multi-channel I2S voice awakening low-power-consumption circuit data processing method and device
  • Multi-channel I2S voice awakening low-power-consumption circuit data processing method and device
  • Multi-channel I2S voice awakening low-power-consumption circuit data processing method and device

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Embodiment Construction

[0034] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.

[0035] Considering that in the prior art, no matter whether there is a valid input signal or not, the CPU needs to be woken up and invoke the smallest speech recognition channel for recognition. The CPU is a component that consumes a lot of power in the system, and the general-purpose speech recognition engine generally adds a lot of circuits that have nothing...

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Abstract

The embodiment of the invention provides a multi-channel I2S voice awakening low-power-consumption circuit data processing method and device. The method comprises the steps of: receiving a voice front-path input signal, and arranging a simplified recognition circuit in an I2S; after identifying an invalid wake-up word and then outputting the invalid wake-up signal; after identifying an effective wake-up word, performing calculation through a preset simplified HMM model to output the effective wake-up signal; and after the multiple MICs are awakened, performing weighting identification, and ifan identification signal exceeds a threshold value, generating awakening interruption, and notifying a CPU to enter an awakening process. According to the invention, the frequency of invalid awakeningof the CPU can be avoided, so that the power consumption of the system in the voice awakening channel is reduced.

Description

technical field [0001] The present application relates to the field of integrated circuits, in particular to a multi-channel I2S voice wake-up low power consumption circuit data processing method and device. Background technique [0002] In the implementation of conventional embedded system voice low-power wake-up system, I2S receives the input signal of the voice front channel and generates an input interrupt to notify the CPU to recognize it. After the correct signal is recognized, the CPU is responsible for notifying other sleeping circuits. [0003] The inventors found that in this way, no matter whether there is a valid input signal or not, the CPU needs to be woken up to call the smallest speech recognition channel for recognition. The CPU is a component that consumes a lot of power in the system, and the general-purpose speech recognition engine generally adds a lot of circuits that are not related to speech recognition, so this implementation method consumes a certai...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10L15/22G10L15/28G10L15/14
CPCG10L15/22G10L15/28G10L15/142G10L2015/223
Inventor 张善伟甘焱林许建国曹卫张梦楠全家准
Owner 安创生态科技(深圳)有限公司
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