Volume-Adaptive Equalizer Gain Control for Balanced Sound
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Solution Overview
Problem
Existing equalizers adjust volume uniformly across all frequencies when changing volume settings, leading to inconvenient repeated adjustments to balance sound levels, as human ear sensitivity varies by frequency.
Innovation Solution
An electronic device with an equalizer adjustment method that uses a volume gain value table with correction parameters for specific frequencies, allowing for independent adjustment of gain values based on output signal volume, comprising a volume detection unit, parameter lookup unit, and parameter setting unit to adjust equalizer settings accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the volume of the sound at all frequencies is adjusted simultaneously, then the volume control function is achieved, but the acoustic properties of the output sound are not maintained, requiring repeated adjustments
Solution Approach 1:
The patent segments the volume adjustment process by frequency bands. Instead of uniformly adjusting all frequencies, the system divides the audio spectrum into multiple frequency bands and applies different gain adjustments to each band based on the current volume level, thus maintaining acoustic properties while achieving volume control
Solution Approach 2:
The patent implements dynamic equalizer settings that automatically adjust gain values for different frequency bands based on the current volume level. As volume changes, the system dynamically modifies the equalizer parameters to compensate for perceived volume differences across frequencies, maintaining optimal acoustic properties without user intervention
2Ease of operation
If the gain values of certain frequencies are increased or reduced, then the auditory experience is optimized, but the volume of the sound at the frequencies becomes unbalanced, requiring further adjustments
Solution Approach 1:
The patent implements a feedback mechanism where the system continuously monitors the current volume level and automatically adjusts equalizer gain values accordingly. This closed-loop approach ensures that when gain values are modified for auditory optimization, the system compensates for resulting volume imbalances, eliminating the need for repeated manual adjustments
Solution Approach 2:
The patent pre-calculates and stores optimal gain value settings for different volume levels. When the user changes volume, the system automatically applies the pre-computed gain adjustments, preventing volume imbalance before it occurs and avoiding the need for subsequent corrective adjustments by the user
Data Source
AI summary
An electronic device and an equalizer adjustment method thereof for adjusting gain settings of an equalizer according to the volume of the output signal are disclosed. The method includes the steps of: setting a volume gain value table including a plurality of volume values through a gain value setting module, which are a first volume value to an Nth volume value with volume incrementally increasing, each of the plurality of volume values including a set of correction parameters which including a plurality of compensation gain values corresponding to a plurality of target frequencies, respectively; storing the volume gain value table in a storage module; obtaining a volume of the output signal; loading the volume gain value table according to the volume of the output signal to obtain the corresponding set of correction parameters; and adjusting gain value settings of an equalizer for different frequencies of sound.