Earphone Volume Curve Correction for Frequently Used Listening Levels

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Solution Overview

Problem

Existing sound volume adjustment systems require manual selection or movement of sound volume regions, failing to correct the sound volume change characteristic in regions rarely used by the user.

Innovation Solution

A sound volume setting method that includes receiving a correction instruction, setting a reference value, and generating a corrected sound volume change characteristic based on this value, allowing for fine adjustments in frequently used sound volume regions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If manual selection or movement of sound volume regions is required, then the device can adjust sound volume characteristics, but the user cannot efficiently correct characteristics in frequently used sound volume regions

Engineering Contradiction:

Improveease of sound volume correctionVSAvoidefficiency of sound volume characteristic correction

Core Design Contradiction:

Ease of operationVSProductivity

Solution Approach 1:

The system automatically identifies frequently used sound volume regions by monitoring user operations and performs correction processing without requiring manual selection. The correction unit autonomously determines which sound volume regions need correction based on usage frequency, eliminating the need for users to manually select regions while improving correction efficiency in frequently used areas.

Inventive Principle:

Principle #25Self-service

2Adaptability or versatility

If prestored sound volume adjustment patterns are used, then sound volume can be adjusted according to different scenarios, but the user must manually select patterns which reduces correction efficiency

Engineering Contradiction:

Improveadaptability of sound volume adjustmentVSAvoidease of sound volume correction

Core Design Contradiction:

Adaptability or versatilityVSEase of operation

Solution Approach 1:

The system automatically adapts to user needs by monitoring sound volume adjustment operations and identifying frequently used regions. Instead of requiring users to manually select prestored patterns, the system self-adjusts by applying correction processing to identified frequently used sound volume regions, thereby maintaining adaptability while improving ease of operation.

Inventive Principle:

Principle #25Self-service

3Manufacturing precision

If sound volume correction is applied uniformly across all regions, then all regions are corrected, but resources are wasted on rarely used regions

Engineering Contradiction:

Improveprecision of sound volume characteristic correctionVSAvoidenergy waste in correction processing

Core Design Contradiction:

Manufacturing precisionVSLoss of energy

Solution Approach 1:

The system applies correction processing selectively only to frequently used sound volume regions rather than uniformly across all regions. By identifying regions with high usage frequency and applying correction only there, the system achieves precise correction where needed while avoiding energy waste in rarely used regions.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The system dynamically changes the correction parameter (usage frequency threshold) to determine which regions receive correction processing. By monitoring operation frequency and adjusting correction application based on this parameter, the system optimizes resource allocation to correct only those regions that benefit most from correction.

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS20250370706A1Sound Volume Setting Method, Sound Volume Setting Terminal, Earphones, and Sound Volume Setting System

Publication Date: 2025.12.04 YAMAHA CORP

AI summary

A sound volume setting method includes receiving a correction instruction to correct a sound volume change characteristic for a sound volume change operation. The sound volume setting method also includes setting a reference value to a sound volume that is used at a time when the correction instruction is received, and generating a corrected sound volume change characteristic by correcting the sound volume change characteristic based on the reference value. The sound volume setting method also includes transmitting the corrected sound volume change characteristic.