Audio Processing Control for Stable Loudspeaker Volume Under Voltage Drop
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Solution Overview
Problem
The output volume of loudspeakers in terminal devices, such as mobile phones and smart watches, significantly drops in low temperature or low power capacity scenarios, affecting user experience.
Innovation Solution
A method and device that determine the current output voltage of the power supply module and configure the audio processing module with target parameters to compensate for voltage changes, using filters and gain controllers to adjust audio signals accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If the terminal device operates in low temperature or low power capacity scenarios, then the power supply module provides reduced output voltage, but the loudspeaker output volume drops significantly
Solution Approach 1:
The patent changes the operating parameters of the audio processing module based on the output voltage level. When the power supply module provides reduced voltage (low temperature or low power capacity scenario), the system adjusts parameters such as gain, filtering, and amplification to compensate for the voltage drop and maintain consistent loudspeaker output volume across different temperature and power conditions.
2Use of energy by moving object
If the power supply module operates at low power capacity, then the output voltage decreases, but the audio signal processing quality deteriorates
Solution Approach 1:
The patent implements dynamic adjustment of the audio processing module's operating parameters based on real-time detection of power capacity and output voltage. The system transitions from static parameter configuration to dynamic parameter adaptation, allowing the audio processing module to optimize its performance according to the available power capacity, thereby maintaining signal processing quality across varying power conditions.
Solution Approach 2:
The system changes parameters including gain levels, filtering characteristics, and amplification factors in the audio processing module based on the detected power capacity and output voltage conditions, enabling the module to maintain acceptable audio processing quality even when operating at reduced power capacity.
3Adaptability or versatility
If the output voltage of the power supply module varies with temperature and power capacity, then the loudspeaker output volume becomes unstable, but user experience deteriorates
Solution Approach 1:
The patent implements a feedback mechanism where the system detects the output voltage of the power supply module and uses this information to automatically adjust the parameters of the audio processing module. This closed-loop control ensures that the loudspeaker output volume remains stable despite variations in output voltage caused by temperature or power capacity changes, thereby maintaining consistent user experience.
Data Source
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AI summary
A method and a device for processing information, a terminal device, and a storage medium are provided. The method for processing information includes: determining a current output voltage of a power supply module in a terminal device (S11); determining a target parameter of an audio processing module in the terminal device according to the current output voltage (S12); and configuring the audio processing module for processing an audio signal according to the target parameter (S13). With the embodiments of the present disclosure, an impact of a change of the output voltage of the power supply module on output volume of a loudspeaker can be reduced, thereby improving user experience.