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Method for adjusting sound source gain value of microphone mic sensor and motion camera

A motion camera, gain value technology, applied in instruments, speech analysis, color TV components, etc., can solve problems such as wind noise, and achieve the effect of improving quality and reducing wind noise

Active Publication Date: 2020-10-13
HANGZHOU EZVIZ NETWORK CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the scene where the wind speed is high and the sound inlet hole of the MIC sensor is facing the same direction as the motion camera, there is still a large wind noise in the recording

Method used

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  • Method for adjusting sound source gain value of microphone mic sensor and motion camera
  • Method for adjusting sound source gain value of microphone mic sensor and motion camera
  • Method for adjusting sound source gain value of microphone mic sensor and motion camera

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Embodiment Construction

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0027] The embodiment of the present invention discloses a noise reduction method for adjusting a sound source gain value of a MIC sensor, which is applied to an image acquisition mobile terminal, and the image acquisition mobile terminal includes an MIC sensor.

[0028] see figure 1 , figure 1 It is a flowchart of a method for adjusting the sound source gain value of the MIC sensor of the embodiment of the present invention, including the following steps:

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Abstract

An embodiment of the present invention provides a method for adjusting the sound source gain value of a microphone MIC sensor, which is applied to an image acquisition mobile terminal. The image acquisition mobile terminal includes an MIC sensor. The method includes: determining the current value of the image acquisition mobile terminal Acceleration and current motion speed; according to the positive and negative conditions of the current acceleration and the change trend of the current motion speed, it is judged whether the orientation of the sound entrance hole of the MIC sensor is consistent with the motion direction of the image acquisition mobile terminal; if If yes, decrease the current input sound source gain value of the MIC sensor. Applying the embodiment of the present invention can reduce the wind noise input to the MIC sensor.

Description

technical field [0001] The invention relates to the technical field of audio processing, in particular to a method for adjusting the gain value of a sound source of a MIC sensor and a motion camera. Background technique [0002] With the rapid development of sports camera technology, users have higher and higher requirements for the audio quality recorded by sports cameras. When an action camera is used for recording or recording during exercise, due to the fast movement speed, the microphone (MIC) sensor provided on the action camera inputs audio while also inputting wind noise, which affects the audio quality. [0003] In order to reduce the wind noise input to the MIC sensor, a widely used method is to set a wind-reducing appearance structure at the sound inlet of the microphone. However, in the scene where the wind speed is high and the sound inlet hole of the MIC sensor is in the same direction as the moving camera, there is still a large amount of wind noise in the re...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G10L21/003G10L21/0216H04M1/725H04N5/225
CPCG10L21/003G10L21/0216G10L2021/02163H04M1/72448H04N23/00
Inventor 周荣辉
Owner HANGZHOU EZVIZ NETWORK CO LTD