Adaptive Beamforming for Dynamic Audio Positioning
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Solution Overview
Problem
Traditional static audio and data signal generation systems fail to provide optimal performance when a user moves or the recipient group's characteristics change, leading to suboptimal surround sound experiences due to volume, directionality, timing, and phase variations.
Innovation Solution
A system and method that utilize position information to dynamically adjust audio signal parameters such as volume, directionality, and timing, ensuring that sound is directed and synchronized to a specific destination position, optimizing the surround sound experience by determining the listener's position using various technologies like satellite positioning, premises-based systems, and speaker-centric position-determining sensors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional static audio signal generation is used, then system simplicity is maintained, but audio quality deteriorates when user position or recipient group characteristics change
Solution Approach 1:
The patent implements dynamic beamforming that continuously adapts audio signal parameters based on real-time detection of user position and recipient group characteristics. The system transitions from static to dynamic operation by adjusting beam patterns, gain values, and signal distribution according to changing environmental conditions, thereby maintaining audio quality consistency without requiring complete system redesign
Solution Approach 2:
The system incorporates feedback mechanisms by detecting user position and recipient group characteristics, then using this information to adjust audio signal generation parameters. The detected environmental data feeds back into the beamforming algorithm to optimize signal distribution, ensuring consistent audio quality while managing system complexity through intelligent adaptation
2Reliability
If dynamic adjustment of audio parameters based on position information is implemented, then audio quality consistency improves, but system complexity increases
Solution Approach 1:
The patent employs a multi-functional system that integrates position detection, recipient group analysis, and adaptive beamforming into a unified audio processing platform. The same computational framework handles multiple tasks including user localization, group characteristic detection, and real-time signal parameter adjustment, reducing overall system complexity through functional consolidation
Solution Approach 2:
The system manages complexity by focusing adjustments on key audio signal parameters such as gain values, beam patterns, and timing synchronization rather than redesigning the entire signal generation architecture. By selectively modifying critical parameters based on position information, the system achieves consistent surround sound experience with minimal structural changes
3Measurement precision
If position information is used to direct sound to specific destinations, then sound directionality and synchronization improve, but computational requirements increase
Solution Approach 1:
The system performs preliminary calculations by pre-computing beamforming weight matrices and signal parameters based on detected position information before actual audio playback. By preparing directional signal configurations in advance, the system reduces real-time computational requirements while maintaining high precision in sound direction and timing synchronization during actual operation
Data Source
AI summary
A system and method for performing efficient directed sound and/or data to a user utilizing position information. Various aspects may, for example, comprise determining position associated with one or more recipients of audio signals, determining one or more audio signal parameters based, at least in part, on such determined position information, and generating audio signals based on such determined audio signal parameters. For example, direction, timing, phasing and/or magnitude of such audio signals may be adapted based on a dynamic recipient positional environment.