Frequency-Specific Audio Dose Control for Hearing Safety
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Solution Overview
Problem
Mobile media players contribute to hearing impairments due to excessive exposure to high sound pressure levels, posing a health risk as users often listen to music at high volumes for extended periods, leading to potential hearing loss and tinnitus.
Innovation Solution
A method for controlling the audio dose consumed by media players by determining the sound pressure level across specific frequency ranges, evaluating the audio dose of media tracks, and adjusting playback volumes to maintain the cumulative audio dose within safe limits, ensuring user safety without compromising the listening experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If users listen to music at high volume levels for extended periods, then the listening experience is improved, but hearing impairments occur
Solution Approach 1:
The system continuously monitors the cumulative audio dose across multiple frequency ranges and uses this feedback to dynamically adjust playback volumes. The processor evaluates the audio dose of currently playing tracks against predefined safety thresholds and automatically modifies volume settings to prevent excessive exposure, thereby protecting hearing while maintaining acceptable listening quality.
Solution Approach 2:
The system changes the volume parameter dynamically based on the audio characteristics of playing tracks. By analyzing the audio dose across different frequency ranges (e.g., bass, mid-range, treble) and adjusting the corresponding volume levels, the system ensures that cumulative exposure remains within safe limits while adapting to the specific characteristics of each media track.
2Object-affected harmful factors
If the cumulative audio dose is limited to safe levels, then hearing safety is improved, but the listening experience may be compromised
Solution Approach 1:
The system applies different volume adjustments to different frequency ranges rather than uniformly reducing all audio levels. By selectively attenuating specific frequency bands that contribute most to the cumulative audio dose while maintaining other frequency ranges, the system protects hearing safety while preserving the overall listening experience and musical quality.
Solution Approach 2:
The volume settings are made dynamic rather than static, automatically adjusting based on the audio characteristics of currently playing tracks and the cumulative exposure history. The system continuously adapts volume levels across different frequency ranges to maintain safety thresholds while optimizing the listening experience for each specific media track.
3Object-affected harmful factors
If the audio dose is monitored and controlled across multiple frequency ranges, then hearing protection is improved, but the device complexity increases
Solution Approach 1:
The frequency spectrum is segmented into multiple distinct ranges (e.g., bass, mid-range, treble), and the audio dose is monitored separately for each segment. This segmentation allows the system to identify which specific frequency ranges contribute most to excessive exposure and apply targeted volume adjustments, improving hearing protection efficiency while managing computational complexity through structured analysis.
Data Source
AI summary
The present disclosure relates to media players, such as portable electronic devices, vehicle audio systems, home stereo systems, etc. In particular, it relates to the management of the sound pressure level generated by portable electronic devices. A method and system for controlling the consumed audio dose of a user of a media player is described. The method comprises the steps of selecting a first frequency range from the total frequency range relevant for the human ear; of determining the audio dose already consumed by the user within the first frequency range; of evaluating the audio dose of a media track within the first frequency range and the already consumed audio dose of the user within the first frequency range; and of controlling the audio dose generated by the media player based on the evaluating step.