Real-Time Audio Loudness Adjustment for Calls and Recordings
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Solution Overview
Problem
Existing audio processing technologies in mobile terminals fail to automatically adjust audio signals in real-time to ensure optimal loudness during calls and recordings, leading to potential issues such as unclear or deafening sound for the recipient.
Innovation Solution
An audio signal adjustment method that dynamically adjusts sound loudness by analyzing the audio signal's amplitude and applying preset adjustment policies, including raising or lowering adjustments based on threshold values, to maintain suitable sound levels during calls and recordings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If audio signals are processed in real-time with dynamic loudness adjustment, then sound quality is improved, but device complexity increases
Solution Approach 1:
The patent pre-establishes multiple adjustment policies (first policy for raising loudness, second policy for lowering loudness) with predetermined threshold values and adjustment parameters. When real-time audio processing is needed, the system simply selects and applies the appropriate pre-configured policy based on current loudness levels, avoiding the need for complex real-time decision algorithms.
Solution Approach 2:
The system dynamically adjusts audio signal parameters (loudness, threshold values) based on real-time analysis. By changing these parameters according to preset policies and current signal characteristics, the system achieves adaptive sound quality optimization without requiring complex processing logic.
2Ease of operation
If manual adjustments are required for optimal sound levels, then processing complexity is reduced, but ease of operation deteriorates
Solution Approach 1:
The system automatically monitors audio signal loudness and self-adjusts by selecting and applying appropriate adjustment policies based on preset threshold values. This self-service mechanism eliminates the need for manual user intervention while maintaining optimal sound levels throughout the recording or calling process.
Solution Approach 2:
The system continuously analyzes audio signal loudness and uses this feedback to dynamically select和调整 appropriate adjustment policies. This closed-loop feedback mechanism ensures automatic adaptation to changing sound levels without requiring user input or complex processing.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The method ensures that audio signals are adjusted in real-time to maintain optimal loudness, preventing issues of unclear or overly loud sound, thereby enhancing call and recording quality without requiring manual adjustments by the user or the recipient.
Implementation Method 1
A microphone is a kind of energy conversion element converting sound signals into electric signals, when vibration of sound transmits to a vibration membrane of the microphone, it will cause a magnet therein to form a changing current signal
Data Source
AI summary
An audio signal adjustment method, a storage medium, and a terminal are provided. The method may include: when it is detected that a pre-set event is triggered, controlling a microphone to acquire an audio signal, the pre-set event comprising a pre-set call event and/or a pre-set voice recording event; analyzing the sound loudness corresponding to the audio signal; dynamically adjusting, according to the analysis result and a pre-set adjustment policy, the sound loudness corresponding to the audio signal; and performing, according to the type of the pre-set event, corresponding output processing on the adjusted audio signal.