Call Audio Spatial Playback Using Screen-Positioned Sound Imaging
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Solution Overview
Problem
Current electronic devices with multiple speakers lack an effective audio playback solution that aligns the perceived audio with the displayed positions of call objects on the interface, leading to a poor imaging sense during calls.
Innovation Solution
An audio playback method that adjusts the strength and phase of sound signals emitted by different sound emitting units based on the positions of users on the interface, using phase-inverted sound signals to enhance the correspondence between the virtual sound image and user positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple sound emitting units are provided to improve audio stereo playback effect, then audio playback capability is improved, but the correspondence between displayed call object positions and perceived audio positions is lost
Solution Approach 1:
The patent applies local quality by differentiating the playback parameters for different sound emitting units based on the spatial position of the called user. When the user is positioned on the left side of the display, the left sound emitting unit outputs sound at a first strength while the right sound emitting unit outputs at a second strength, creating localized audio characteristics that correspond to the user's visual position.
Solution Approach 2:
The patent implements dynamics by dynamically adjusting the strength parameters of sound signals based on real-time detection of the called user's position. The processing unit modifies the playback parameters adaptively according to the user's location, ensuring that the audio spatial distribution changes dynamically to match the visual display layout.
2Ease of operation
If sound signals are emitted with equal strength from multiple speakers, then simple playback is achieved, but imaging sense is poor
Solution Approach 1:
The patent applies parameter changes by modifying the strength parameter of sound signals based on the called user's position. The processing unit adjusts the amplitude or volume parameters of individual sound emitting units, changing them from equal strength to differentiated strength according to spatial requirements, thereby improving audio imaging quality.
Data Source
AI summary
Embodiments of this application provide an audio playback method and an electronic device. When the electronic device establishes a call connection to another electronic device, the electronic device may receive a call audio signal sent by the another electronic device. The electronic device determines an audio signal parameter processing strategy based on coordinate information of a user image of the another electronic device on a screen of the electronic device, and generates an outloud audio signal. The outloud audio drives a first sound emitting unit and a second sound emitting unit to emit a sound, and a virtual sound image generated by jointly emitting a sound by the first sound emitting unit and the second sound emitting unit corresponds to an orientation of the user image of the another electronic device on the screen of the electronic device.