Vehicle 3D Audio Sound Field Control for Planned Maneuvers
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Solution Overview
Problem
Current vehicle audio systems lack the ability to dynamically adjust sound fields based on vehicle maneuvers, environmental conditions, and passenger positions, leading to suboptimal auditory experiences during autonomous driving and other scenarios.
Innovation Solution
An electronic device with circuitry that determines the position and orientation of sound fields using information about planned vehicle maneuvers, environmental conditions, and passenger positions, utilizing 3D audio rendering techniques like Wavefield synthesis or monopole synthesis to adjust virtual sound sources accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional fixed sound field systems are used in vehicles, then the audio system structure is simple and stable, but the auditory experience cannot adapt to different vehicle maneuvers, environmental conditions, and passenger positions
Solution Approach 1:
The sound field position and orientation are made dynamic by continuously adjusting them based on real-time vehicle maneuver data, environmental conditions, and passenger positions. The system transitions from a static sound field to a dynamic one that adapts to changing conditions, resolving the contradiction between adaptability and complexity by implementing adaptive adjustment mechanisms.
Solution Approach 2:
The system changes sound field parameters (position, orientation, audio wideness) based on vehicle state information and environmental conditions. By dynamically modifying these parameters in response to detected conditions, the system achieves adaptability without requiring a complete system redesign, thus managing complexity while improving versatility.
2Reliability
If sound fields are dynamically adjusted based on multiple parameters (maneuver, environment, passenger position), then the auditory experience is optimized, but the system complexity and computational requirements increase
Solution Approach 1:
The system pre-determines sound field adjustments based on planned maneuvers rather than reacting to actual maneuvers after they occur. By using anticipated vehicle states and pre-calculating appropriate sound field configurations, the system reduces real-time computational complexity while maintaining high auditory experience quality.
Solution Approach 2:
The system implements feedback mechanisms where sound field adjustments are continuously refined based on detected vehicle states, environmental conditions, and passenger positions. This closed-loop approach optimizes auditory experience by adapting to actual conditions while using feedback to manage system complexity through iterative adjustment rather than exhaustive pre-computation.
3Object-affected harmful factors
If sound fields are adjusted in advance based on planned maneuvers, then passenger safety and comfort are improved through audio cues, but the system requires access to and processing of maneuver planning information
Solution Approach 1:
The audio system acts as an intermediary between the vehicle's maneuver planning system and the passengers. By receiving maneuver information from the vehicle's control systems and translating it into appropriate sound field adjustments, the intermediary approach enables safety and comfort improvements without requiring direct access to complex maneuver planning algorithms, thus managing the difficulty of information access.
Data Source
AI summary
An electronic device for a vehicle comprising circuitry configured to obtain information about a planned maneuver of the vehicle; and circuitry configured to determine the position and/or orientation of a sound field based on the information about the planned maneuver of the vehicle.