Orientation-Aware Surround Sound Playback for Electronic Devices
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Solution Overview
Problem
Existing electronic devices with multiple speakers struggle to maintain effective surround sound playback when the device orientation changes, as current solutions fail to adequately compensate for orientation shifts in audio delivery.
Innovation Solution
A method and system that process audio streams by generating a rendering component, determining an orientation-dependent component, updating it based on speaker orientation, and dispatching audio streams to multiple speakers for playback, ensuring high-fidelity surround sound across different orientations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If simple sound compensation methods are used when device orientation changes, then ease of operation is improved, but sound quality deteriorates
Solution Approach 1:
The patent implements dynamic orientation-dependent rendering that continuously adapts audio playback parameters based on the device's current orientation angle. The system calculates orientation-dependent rendering components and updates audio channel assignments in real-time as the device rotates, maintaining consistent surround sound quality across all orientations without requiring manual intervention.
Solution Approach 2:
The system changes audio rendering parameters dynamically based on device orientation. It computes orientation-dependent rendering components that modify channel assignments, volume levels, and spatial positioning of audio channels according to the detected orientation angle, thereby preserving sound quality while adapting to different device positions.
2Reliability
If multiple speakers are used for surround sound, then sound quality is improved, but device complexity increases
Solution Approach 1:
The patent creates a universal audio rendering system that works across multiple device orientations and speaker configurations. The orientation-dependent rendering component serves multiple functions: it adapts to portrait and landscape modes, handles different surround sound formats, and maintains compatibility with various speaker arrangements, thereby achieving high sound quality without proportionally increasing system complexity.
Solution Approach 2:
The system replaces complex mechanical reconfiguration of speakers with computational audio processing. Instead of physically repositioning speakers or requiring manual configuration, the patent uses software-based orientation-dependent rendering to dynamically adjust audio channel assignments and spatial parameters, achieving adaptability through information processing rather than mechanical changes.
3Reliability
If orientation-dependent rendering is implemented, then sound quality is improved, but processing complexity increases
Solution Approach 1:
The system performs preliminary computation of orientation-dependent rendering components based on detected orientation angles. By pre-calculating the necessary rendering adjustments for different orientation states and storing these as lookup tables or pre-computed matrices, the system reduces real-time processing requirements while maintaining high sound quality during actual audio playback.
Data Source
AI summary
Example embodiments disclosed herein relate to orientation-aware surround sound playback. A method for processing audio on an electronic device that includes a plurality of loudspeakers is disclosed, the loudspeakers arranged in more than one dimension of the electronic device. The method includes, responsive to receipt of a plurality of received audio streams, generating a rendering component associated with the plurality of received audio streams, determining an orientation dependent component of the rendering component, processing the rendering component by updating the orientation dependent component according to an orientation of the loudspeakers and dispatching the received audio streams to the plurality of loudspeakers for playback based on the processed rendering component. Corresponding system and computer program products are also disclosed.