Earphone-Aware Volume Adjustment for Perceptible Safe Audio
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Solution Overview
Problem
Existing volume adjustment methods for earphones connected to mobile devices fail to provide an optimal user experience, as different types of earphones require distinct volume adjustment approaches to prevent loudness or low volume issues, leading to poor user experience.
Innovation Solution
A method that determines specific volume adjustment modes based on the type of audio output device, such as in-ear, bone conduction, or ear hook headphones, by obtaining type information and noise reduction capabilities, allowing for customized volume adjustments to improve user experience and protect hearing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a unified volume adjustment mode is used for all earphone types, then the system is simple to implement, but user experience deteriorates due to inappropriate volume changes for specific earphone types
Solution Approach 1:
The patent applies local quality by implementing different volume adjustment strategies for different earphone types. The system identifies the earphone type (in-ear, bone conduction, ear hook) and applies customized volume adjustment modes specific to each type, rather than using a unified approach. This resolves the contradiction by making the volume adjustment experience appropriate for each earphone type while maintaining system manageability through automated type detection.
Solution Approach 2:
The patent changes the volume adjustment parameter based on earphone type. For in-ear earphones, the volume adjustment step is reduced to prevent excessive loudness; for bone conduction headphones, the adjustment step is increased to make changes more perceptible. This dynamic parameter adjustment resolves the contradiction between operational simplicity and experience reliability.
2Ease of operation
If the volume adjustment step is increased for bone conduction headphones, then the system remains simple, but the user perceives less volume change
Solution Approach 1:
The patent applies local quality by recognizing that bone conduction headphones have different acoustic characteristics than other earphone types. The system detects the earphone type and applies a customized volume adjustment strategy that increases the adjustment step size specifically for bone conduction headphones, making volume changes more perceptible while maintaining simplicity for other types.
Solution Approach 2:
The patent implements dynamic volume adjustment where the adjustment step size changes based on the detected earphone type. The system dynamically adapts the volume control parameters to match the acoustic characteristics of the connected device, resolving the contradiction between operational simplicity and perception precision.
3Object-affected harmful factors
If the volume adjustment step is decreased for in-ear earphones, then hearing protection is improved, but the user experiences excessive loudness changes
Solution Approach 1:
The patent applies local quality by implementing a reduced volume adjustment step specifically for in-ear earphones to prevent excessive loudness changes that could harm hearing. The system detects the earphone type and applies this protective adjustment only to in-ear models, while using different adjustment strategies for other types, thus resolving the contradiction between hearing protection and user experience.
Solution Approach 2:
The patent applies preliminary anti-action by proactively reducing the volume adjustment step for in-ear earphones before hearing damage can occur. The system preemptively limits the maximum volume change per adjustment to prevent harmful loudness spikes, while maintaining normal adjustment for other earphone types where such protection is not needed.
Data Source
AI summary
In a volume adjustment method, after being connected to an audio output device, an electronic device obtains type information of the audio output device, and determines different volume adjustment modes based on different type information of the audio output device.