Wind Noise Compensation Headset Controller
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Solution Overview
Problem
Existing headsets face limitations in effectively compensating for wind noise due to the small form factor and performance constraints of microphone array processing, which restricts accurate prediction of wind characteristics, leading to suboptimal noise suppression and speech enhancement in noisy environments.
Innovation Solution
A headset equipped with a controller, information receiver, direction sensor, and input, which receives wind information and direction data to generate an output audio signal that compensates for wind noise, utilizing this information to improve noise suppression and speech enhancement by considering wind direction, speed, and headset position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If microphone array processing is used to estimate wind characteristics, then wind noise prediction capability is improved, but device complexity and processing requirements increase beyond what is practical for small form factor headsets
Solution Approach 1:
The patent introduces an intermediary component - a separate wind information receiver (such as a weather station or meteorological service) that provides wind data to the headset. This mediator handles the complex wind measurement and processing tasks externally, allowing the headset to receive ready-to-use wind information without implementing complex microphone array processing itself, thus resolving the contradiction between measurement precision and device complexity
Solution Approach 2:
The patent replaces the mechanical/acoustic approach of using microphone arrays within the headset with an information-based approach. Instead of using multiple microphones and complex signal processing to estimate wind characteristics, the system substitutes this with receiving wind information from external sources (weather stations, meteorological services), thereby eliminating the need for complex internal processing hardware while maintaining or improving measurement accuracy
2Use of energy by moving object
If wind information is received from external sources, then processor load and power consumption are reduced, but dependency on external information sources increases
Solution Approach 1:
The headset controller is designed with multi-functionality to handle both wind noise compensation and regular audio processing. The system can adaptively switch between using external wind information sources and alternative methods based on availability, making the headset versatile and reducing dependency on any single external source while maintaining energy efficiency
Solution Approach 2:
The system performs preliminary actions by receiving and storing wind information in advance from external sources when available. This allows the headset to have wind data ready for processing without needing to query external sources continuously during operation, reducing real-time processor load and power consumption while maintaining the ability to function independently if external sources become unavailable
Data Source
AI summary
A headset comprising a controller configured to receive wind information comprising information relating to a direction of wind in a predetermined coordinate system, direction information relating to a direction of the headset in the predetermined coordinate system, and an input audio signal and to generate an output audio signal based on the wind information, the direction information and the input audio signal.