Dynamic Noise Reduction Mode for Mobile Calls
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Solution Overview
Problem
Conventional methods for reducing ambient noise in mobile devices during calls often compromise voice quality and increase power consumption, especially in quiet environments, as they employ fixed noise reduction algorithms that are not adaptive to varying noise levels.
Innovation Solution
A method and electronic device that dynamically set noise reduction modes based on sensed ambient noise levels, allowing for varying levels of noise reduction to be applied in response to changing noise conditions, thereby improving communication quality and reducing power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a fixed noise reduction algorithm is employed, then noise reduction needs are covered in different environments, but voice quality deteriorates and power consumption increases in quiet environments
Solution Approach 1:
The patent applies dynamics by transitioning from a fixed noise reduction algorithm to a dynamic one that adapts to varying ambient noise conditions. The system continuously monitors noise levels and adjusts the noise reduction mode accordingly, ensuring optimal performance across different environments without compromising voice quality or unnecessarily consuming power in quiet conditions
Solution Approach 2:
The patent implements parameter changes by modifying the noise reduction level based on detected ambient noise characteristics. The system changes parameters such as noise reduction intensity and processing mode according to the measured noise environment, allowing it to maintain voice quality while effectively reducing ambient noise when necessary
2Object-affected harmful factors
If a fixed noise reduction algorithm is employed, then noise reduction needs are covered in different environments, but power consumption increases in quiet environments
Solution Approach 1:
The system dynamically adjusts noise reduction processing based on real-time ambient noise detection. In quiet environments, the system reduces or disables noise reduction processing to minimize power consumption, while in noisy environments it activates appropriate noise reduction modes to maintain communication quality
Solution Approach 2:
The patent applies partial action by selectively applying noise reduction only when and where needed. Instead of continuously applying full noise reduction processing, the system applies partial processing based on noise level thresholds, reducing power consumption in quiet environments while maintaining effectiveness in noisy conditions
Data Source
AI summary
A method and an electronic device for communication quality improvement based on ambient noise sensing are provided for improving communication quality. The method includes: during a call, dynamically setting a noise reduction mode in response to the varying of an ambient noise amount of at least one audio signal received by the electronic device. The setting step includes: during the call, dynamically determining whether the ambient noise amount indicates the needs of the application of noise reduction. If the ambient noise amount indicates the needs of the application of noise reduction, then one of a plurality of noise reduction levels is selected according to the ambient noise amount, and the noise reduction mode is set according to the selected noise reduction level, wherein the noise reduction levels include at least two levels corresponding to two different amounts of noise reduction.