Receiver-Screen Call Audio Switching to Reduce Sound Leakage
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Solution Overview
Problem
Sound leakage occurs during voice calls on full-screen mobile phones due to sound output from both side and top holes, compromising user privacy in quiet environments.
Innovation Solution
A call control method that adjusts sound output between a receiver and screen sound production apparatus based on user operations and ambient noise levels, automatically switching between privacy and normal modes to minimize sound leakage while ensuring clear communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If sound output holes are arranged at the top and side of the mobile phone to ensure sufficient sound output area and good sound output effect, then the sound output quality is improved, but sound leakage occurs and user privacy is compromised
Solution Approach 1:
The sound output function is segmented into two independent sound production paths: the traditional receiver-based sound output and the new screen-based sound output. The screen is divided into a first area (non-display area) and a second area (display area), with the first area serving as a sound output area. This segmentation allows the sound to be directed through different physical pathways, with the screen sound production directing sound toward the user's ear while the receiver sound production handles other audio output needs, thereby reducing sound leakage through the top sound output hole.
Solution Approach 2:
The screen's first area (non-display area) acts as an intermediary sound output medium between the sound production apparatus and the user's ear. Instead of sound traveling directly through the air from the top sound output hole to surrounding areas, the screen structure serves as a controlled intermediary that directs sound energy toward the intended recipient (user's ear) while blocking leakage paths.
2Power
If the receiver and screen sound production apparatus emit sound at high volume simultaneously, then call quality is improved, but sound leakage increases and privacy is compromised
Solution Approach 1:
The system dynamically adjusts the sound output characteristics based on real-time conditions. The processor controls the receiver sound production apparatus and screen sound production apparatus to emit sound at different volumes and ratios according to the calling scenario. For example, in private calling scenarios where the user holds the phone to their ear, the system can reduce the receiver volume and increase the screen sound volume, dynamically optimizing both call quality and privacy protection.
Solution Approach 2:
The system changes the acoustic parameters (volume, intensity, ratio) of the two sound production paths based on different calling scenarios. The processor can adjust the sound emission parameters to match the user's needs - for instance, using a higher proportion of screen sound for private calls and a higher proportion of receiver sound for public announcements, thereby maintaining call quality while controlling sound leakage.
3Object-generated harmful factors
If the system automatically adjusts sound output ratio between receiver and screen based on calling scenario, then user privacy and call quality are improved, but device complexity increases
Solution Approach 1:
The system implements self-service through automatic scenario recognition and adaptive sound ratio adjustment. The processor automatically identifies the calling scenario (private call, public announcement, etc.) and adjusts the sound output ratio between the receiver and screen without requiring manual user input. This self-service capability reduces the need for complex user interfaces and manual controls while maintaining optimal privacy protection and call quality.
Solution Approach 2:
The system uses feedback mechanisms to monitor the calling scenario and adjust sound output accordingly. The processor receives feedback about the current calling situation (such as whether the phone is held to the ear, ambient noise levels, etc.) and automatically adjusts the sound emission ratio between the receiver and screen sound production apparatus to optimize both privacy protection and call quality.
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
Effectively reduces sound leakage in quiet environments and maintains clear call quality in noisy conditions, enhancing user privacy and call experience.
Implementation Method 1
a screen sound production apparatus configured to drive the screen to perform screen sound production
Implementation Method 2
sound production in voice communication of a mobile phone is implemented through a receiver arranged at the top of the mobile phone
Data Source
AI summary
This application provides a call control method, an electronic device, and a storage medium. When an incoming call is answered, an answering volume can be automatically adjusted based on a system call volume, and a privacy call mode is enabled; during the call, mode switching can be automatically performed based on a magnitude of an ambient sound, that is, in a quiet environment, the privacy call mode is automatically switched to, and the volume is automatically reduced; in a noisy environment, the normal mode is automatically switched to, and the volume is automatically increased; and when a call comes or during a call, switching may alternatively be performed between different modes based on actual needs of a user in response to a manual trigger operation by the user.