Microphone Position Adjustment for Wind Noise Reduction
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Solution Overview
Problem
Audio electronic devices, such as AR glasses, experience significant wind noise interference when used outdoors, affecting call quality, as existing technologies fail to effectively mitigate wind noise while maintaining voice pickup.
Innovation Solution
The method involves a movable microphone within a pipeline in the audio electronic device, driven by a control device to adjust its position based on wind noise levels, moving until the noise is reduced below a set value, and then stopping when the noise meets a second, lower threshold, thereby minimizing wind noise impact on voice pickup.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the microphone is fixed in position, then the device structure is simple, but wind noise cannot be effectively controlled
Solution Approach 1:
The microphone is designed to be movable along the pipeline rather than fixed, allowing it to dynamically adjust its position in response to wind noise conditions. The driving device enables the microphone to move to different positions along the pipeline, transforming a static system into a dynamic one that can adapt to changing environmental conditions.
Solution Approach 2:
The control device receives wind noise information from the microphone and uses this feedback to control the driving device, which adjusts the microphone's position along the pipeline. This closed-loop feedback mechanism enables the system to automatically respond to wind noise levels and optimize the microphone's position accordingly.
2Object-affected harmful factors
If the microphone moves to reduce wind noise, then wind noise is reduced, but the device complexity increases
Solution Approach 1:
The pipeline is segmented into multiple positions along its length, with the microphone capable of stopping at different segments or positions. This segmentation allows the microphone to be positioned at specific locations along the pipeline, enabling discrete position adjustments to optimize noise reduction while managing system complexity.
Solution Approach 2:
The movable positioning system serves multiple functions: it reduces wind noise, maintains voice pickup quality, and adapts to different environmental conditions. The same mechanism that moves the microphone to reduce wind noise also enables the system to optimize performance across various operating scenarios.
3Object-affected harmful factors
If the microphone is positioned deeper in the pipeline, then wind noise is reduced, but voice pickup may be affected
Solution Approach 1:
The system dynamically adjusts the microphone's position along the pipeline based on real-time wind noise conditions. When wind noise is high, the microphone moves to deeper positions to reduce noise. When wind noise is low, the microphone returns to positions that optimize voice pickup, ensuring reliable performance across varying conditions.
Solution Approach 2:
The system changes the positional parameter of the microphone along the pipeline to optimize performance. By adjusting the microphone's position parameter in response to wind noise levels, the system balances noise reduction and voice pickup quality, ensuring reliable operation under different environmental conditions.
Data Source
AI summary
Disclosed are an audio electronic device and a wind noise control method for a microphone of the audio electronic device. The wind noise control method for the microphone of the audio electronic device comprises: obtaining wind noise picked up by the microphone at a current position of the microphone; and in response to that the wind noise at the current position is greater than a first set value, controlling the driving device to drive the microphone until the wind noise at the current position of the microphone is less than a second set value, wherein the second set value is less than or equal to the first set value.