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Voice control method and system for traffic recorder

A driving recorder and voice control technology, applied in voice analysis, voice recognition, instruments, etc., can solve the problem of high storage space cost, and achieve the effect of wide range of use scenarios, saving occupation, and improving use effect.

Active Publication Date: 2019-01-25
AISPEECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to at least solve the problem in the prior art that due to the characteristics of the identification and decoding method itself, the driving recorder needs to have high storage space, strong processing performance and high cost.

Method used

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  • Voice control method and system for traffic recorder

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Embodiment Construction

[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0026] Such as figure 1 Shown is a flow chart of a voice control method for a driving recorder provided by an embodiment of the present invention, including the following steps:

[0027] S11: collect the sound in the vehicle in real time, and generate corresponding audio;

[0028] S12: Extracting the Fbank feature of the audio, analyzing the Fba...

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Abstract

An embodiment of the present invention provides a voice control method for a traffic recorder. The method comprises the following steps of: collecting sound in a vehicle in real time to generate corresponding audio; the Fbank feature of audio is extracted, and the Fbank feature is analyzed by built-in neural network to determine the posterior probability of each command word in the control commandword hit by audio. The posterior probability of each command word in the control command word is filtered to determine the joint probability of hitting each control command word. The control commandword with the highest joint probability is regarded as the effective control command word. When the joint probability of the effective control command word reaches the preset recognition threshold, the audio is associated with the effective control command word, and an operation corresponding to the effective control command word is performed. Embodiments of the present invention also provide a voice control system for a traffic recorder. The embodiment of the invention reduces the computation amount by extracting the Fbank characteristics of the collected audio, and saves the occupation of the memory and the hardware algorithm because the decoding is not performed.

Description

technical field [0001] The invention relates to the field of intelligent voice, in particular to a voice control method and system for driving recorders. Background technique [0002] Drive recorder is the instrument of the relevent informations such as image and sound in registration of vehicle traveling way. Driving recording is installed After instrument, the video, image and sound of running car overall process can be recorded, evidence can be provided for traffic accident. With the development of voice technology, driving recorders have gradually developed from touch screen or button control to voice control. The driving recorder is controlled by voice, which frees the hands of the vehicle driver, ensures that the driver's attention is not distracted, and is safer. [0003] This kind of driving recorder that can be controlled by voice usually adopts the recognition method of real-time voice decoding, recognizes and decodes the collected audio, outputs the text corresp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10L15/22G10L15/16
CPCG10L15/16G10L15/22G10L2015/223
Inventor 白生炜
Owner AISPEECH CO LTD
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