Dynamic Acoustic Radiation Pattern Adaptation
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Solution Overview
Problem
Achieving high audio quality in environments is challenging due to sub-optimal placement of speakers and listeners, leading to degraded acoustic quality and user satisfaction.
Innovation Solution
An electronic device dynamically adapts sound based on spatial information from ambient noise, calculating an acoustic radiation pattern to adjust speaker settings and output audio content effectively, ensuring optimal listening experiences across various environments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If speakers are placed in fixed positions, then device complexity is reduced, but acoustic quality deteriorates when listener position changes
Solution Approach 1:
The system dynamically adjusts the acoustic radiation pattern of speakers based on detected listener position and environmental characteristics. Instead of fixed speaker placement, the system adapts sound distribution in real-time, allowing high acoustic quality throughout the room rather than limited to a small sweet spot.
Solution Approach 2:
The system changes acoustic parameters (radiation pattern, frequency response, spatial distribution) based on environmental characterization and listener position. This allows the same speaker configuration to deliver optimal acoustic quality for different listener positions and environmental conditions.
2Device complexity
If the acoustic radiation pattern is fixed, then device complexity is reduced, but adaptability to different environments deteriorates
Solution Approach 1:
The system uses acoustic sensors to detect environmental characteristics and listener position, then feeds this information back to dynamically adjust the acoustic radiation pattern. This closed-loop feedback enables automatic adaptation to different environments without manual configuration.
Solution Approach 2:
The system automatically characterizes the environment and adjusts its acoustic output without requiring user intervention. The electronic device performs environmental scanning, analyzes acoustic properties, and self-adjusts the radiation pattern to optimize sound distribution for the specific environment.
3Manufacturing precision
If speakers are positioned for optimal stereo imaging, then acoustic quality is improved in the sweet spot, but coverage area is reduced
Solution Approach 1:
The system dynamically modifies the acoustic radiation pattern to expand the effective listening area. By adjusting spatial distribution and directional characteristics based on listener position, multiple listeners can experience high-quality sound throughout the room rather than being confined to a narrow sweet spot.
Solution Approach 2:
The system tailors the acoustic radiation pattern to deliver optimized sound quality to specific listener positions. Different spatial zones can receive customized acoustic treatment, allowing each listener to experience optimal sound quality regardless of their position in the room.
Data Source
AI summary
An electronic device that dynamically adapts sound based at least in part on spatial information determined from ambient or background sound is described. Based at least in part on sound measurements corresponding to ambient noise in an environment, which may include a second electronic device, the electronic device may determine a characteristic of the environment. For example, the characteristic may include: a size of the environment, an acoustic mode of the environment and/or a reverberation time of the environment, which is associated with at least a frequency. Then, based at least in part on the determined characteristics, the electronic device may calculate an acoustic radiation pattern. Next, the electronic device may provide audio content and second information specifying the acoustic radiation pattern for the second electronic device.