Earphone Noise Reduction Adjusting for Hearing Thresholds
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current earphones use a single noise reduction mode for all environments, leading to uncomfortable negative pressure in quiet settings and inadequate noise reduction for users with varying sound sensitivity between ears.
Innovation Solution
A noise reduction adjusting method that acquires target noise values, outputs sound signals with identical amplitude and opposite phase to match user hearing thresholds, and adjusts noise reduction parameters to ensure the difference matches preset decibel intervals, optimizing noise reduction for individual user experiences.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single noise reduction mode is used for all environments, then the device complexity is reduced, but the adaptability to different environments and users deteriorates
Solution Approach 1:
The patent implements dynamic noise reduction by continuously detecting ambient noise levels and automatically adjusting the noise reduction parameter accordingly. The system transitions from a static single-mode approach to a dynamic multi-mode system that adapts to different environmental conditions in real-time, resolving the contradiction between device complexity and environmental adaptability.
Solution Approach 2:
The patent changes the noise reduction parameter based on detected noise levels and user hearing thresholds. By adjusting the noise reduction parameter dynamically according to environmental noise and individual user characteristics, the system achieves adaptability without requiring complex manual configuration, thus resolving the contradiction between simplicity and versatility.
2Reliability
If low-frequency noise is further reduced in quiet environment, then the noise reduction effectiveness is improved, but the user comfort deteriorates due to negative pressure feeling
Solution Approach 1:
The patent employs feedback mechanisms by continuously monitoring both ambient noise levels and user comfort indicators. The system adjusts the noise reduction parameter based on this feedback loop, reducing low-frequency noise when effective and minimizing it when it causes negative pressure, thus resolving the contradiction between noise reduction effectiveness and user comfort.
Solution Approach 2:
The patent dynamically changes the noise reduction parameter based on environmental conditions and user response. When in quiet environments, the system reduces the noise reduction parameter to prevent negative pressure feeling, while maintaining higher effectiveness in noisy environments, thereby resolving the contradiction between effectiveness and comfort.
3Device complexity
If the same noise reduction mode is applied to both ears, then the device complexity is reduced, but the adaptability to individual user characteristics deteriorates
Solution Approach 1:
The patent segments the noise reduction configuration into independent left and right ear settings. Each ear can have its own optimized noise reduction parameter based on individual user characteristics such as hearing sensitivity differences, allowing customized adaptation without increasing overall system complexity through automated detection and configuration.
Solution Approach 2:
The patent applies local quality by allowing different noise reduction parameters for left and right ears based on individual user characteristics. Each ear receives tailored noise reduction treatment according to its specific requirements, achieving adaptability to user characteristics while maintaining simplicity through automated detection and configuration.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Improves noise reduction effectiveness by tailoring noise cancellation to user-specific hearing thresholds, preventing negative pressure and enhancing listening comfort across different environments.
Implementation Method 1
outputting a sound signal with identical amplitude and opposite phase as compared with a noise corresponding to the target noise value
Data Source
AI summary
The present disclosure provides a noise reduction adjusting method, an earphone and a computer-readable storage medium. The noise reduction adjusting method comprises: acquiring a collected target noise value when an active noise reduction mode of an earphone is detected as activated; if the target noise value is greater than a standard hearing threshold corresponding to the target noise value, then outputting a sound signal with identical amplitude and opposite phase as compared with a noise corresponding to the target noise value, and calculating a difference between the target noise value and the standard hearing threshold; if the difference does not match with preset decibel intervals, then adjusting a noise reduction parameter of the earphone until an adjusted difference matches with the preset decibel intervals.