Audio Compensation for Abnormal Frequency Points in Display Terminals
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Solution Overview
Problem
High-end display terminals face challenges in delivering optimal sound effects due to limited audio device volume, resulting in incomplete sound experiences and poor music performance.
Innovation Solution
An audio adjusting method that acquires an audio signal, determines its actual sound effect characteristic curve, identifies abnormal frequency points, applies audio compensation values to adjust the curve, and outputs an improved audio signal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the audio device volume is limited due to product size constraints, then the display terminal can maintain compact dimensions, but the sound effect quality deteriorates with incomplete sound experience and poor music performance
Solution Approach 1:
The patent changes the parameters of the audio signal by applying frequency-specific compensation values to abnormal frequency points. The system analyzes the actual sound effect characteristic curve, identifies deviant frequency points, and adjusts their amplitude parameters using compensation values stored in a lookup table, thereby improving sound quality without increasing device volume.
2Reliability
If manual adjustment of audio parameters is used to optimize sound effects, then sound quality can be improved, but the operation complexity increases and user experience deteriorates due to tedious adjustments
Solution Approach 1:
The system performs self-service by automatically analyzing its own sound output characteristics, identifying abnormal frequency points, and applying appropriate compensation values without user intervention. The display terminal itself measures its sound effect characteristic curve and adjusts the audio parameters autonomously, eliminating the need for manual tuning while maintaining optimal sound quality.
Solution Approach 2:
The system implements feedback by measuring the actual sound effect characteristic curve output from the audio device, comparing it against expected characteristics, and using the deviation information to automatically adjust audio parameters. This closed-loop feedback mechanism enables automatic optimization of sound quality without requiring manual user adjustments.
3Reliability
If the audio device volume is increased to improve sound effect quality, then sound performance can be enhanced, but the product size increases violating the compact design requirement
Solution Approach 1:
Instead of increasing physical volume, the patent changes the electrical parameters of the audio signal through digital signal processing. By applying compensation values to adjust the amplitude of specific frequency components, the system achieves improved sound quality through parameter optimization rather than physical expansion.
Data Source
AI summary
The present disclosure provides an audio adjusting method, device and apparatus, and a storage medium. The method includes: acquiring a to-be-adjusted audio signal; acquiring an actual sound effect characteristic curve of the to-be-adjusted audio signal, which is a relation curve of actual values between sound effect parameters including level values characterizing frequency response characteristics of the audio signal, and frequency points, of the to-be-adjusted audio signal; determining, according to at least the actual sound effect characteristic curve, an abnormal frequency point set in the actual sound effect characteristic curve; acquiring an audio compensation value corresponding to each abnormal frequency point in the abnormal frequency point set, and adjusting the actual sound effect characteristic curve based on at least one audio compensation value to obtain an adjusted sound effect characteristic curve; and outputting an adjusted audio signal based on the adjusted sound effect characteristic curve.