Audio Control Method for Terminal Movement State Adjustment
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Solution Overview
Problem
Existing audio control methods for mobile terminals fail to maintain consistent sound quality during calls, especially in varying modes like directly approaching, wired headset, wireless headset, and loudspeaker modes, due to changes in user position relative to the microphone, leading to poor hearing experiences and increased power consumption.
Innovation Solution
An audio control method that determines movement state parameters by analyzing audio signals using a microphone, adjusts audio quality in real-time based on distance, angle, and environmental changes, and automatically compensates for volume without manual adjustments, using a combination of sensors and signal processing techniques to optimize sound reception.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual volume adjustment is used, then user control over audio levels is achieved, but user effort and operation complexity increase
Solution Approach 1:
The system automatically monitors user position relative to the microphone and adjusts audio levels without manual intervention. The terminal device performs self-service by detecting movement state parameters and autonomously compensating for volume changes, eliminating the need for users to manually adjust volume buttons while maintaining optimal audio quality
Solution Approach 2:
The system implements a feedback mechanism where the terminal continuously monitors user position changes through audio signals and movement sensors, then adjusts audio levels based on this feedback. This closed-loop control ensures audio quality is maintained by constantly adapting to changing user positions without requiring manual input
2Reliability
If real-time audio monitoring and adjustment is implemented, then call sound quality is improved, but power consumption increases
Solution Approach 1:
The system dynamically adjusts audio monitoring and adjustment frequency based on detected movement state parameters. When user position is stable, monitoring intensity is reduced to save power; when movement is detected, the system increases monitoring and adjustment frequency to maintain audio quality, creating an adaptive power management strategy
Solution Approach 2:
The system changes operational parameters such as sampling rate and processing intensity based on movement state. By adjusting these parameters dynamically according to whether the user is moving or stationary, the system optimizes the balance between audio quality maintenance and power consumption, reducing energy usage during stable periods while ensuring quality during movement
3Measurement precision
If audio signals are continuously monitored and processed, then position accuracy is improved, but computational complexity increases
Solution Approach 1:
The system segments audio signal processing into distinct stages: initial audio signal acquisition, movement state parameter extraction, position change determination, and audio level adjustment. This segmentation allows each stage to be optimized independently, reducing overall computational complexity while maintaining position detection accuracy through focused processing at each stage
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
This solution enhances call sound quality by maintaining consistent audio levels, reducing user effort in volume adjustments, and improving hearing experiences across different application scenarios, including virtual reality, while minimizing power consumption and preventing information leakage.
Implementation Method 1
a position change of the user with respect to a terminal is obtained according to an audio signal acquired by an MIC
Data Source
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AI summary
Disclosed are an audio control method and device, and a terminal. The method includes: obtaining, according to an audio signal acquired by a mic, a position change and a movement state parameter of a user with respect to a terminal (101); and performing corresponding audio quality adjustment according to the movement state parameter (102). By means of the solution of the present invention, that the terminal can monitor the change of the movement state of the user in real time is ensured, and self-adaptive audio compensation algorithm control adjustment can be made without needing to constantly adjust volume by means of side buttons, thereby improving call sound quality experience of the user.