Acoustic Output Device Orientation Control for Consistent Sound Perception
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Solution Overview
Problem
Current acoustic output devices in road-based vehicles do not effectively account for changes in orientation and location, leading to inconsistencies in sound perception, which can exacerbate motion sickness and disrupt the listening experience.
Innovation Solution
A method and system that determine the orientation and location of acoustic output devices relative to the vehicle, generating control signals to adjust the sound output accordingly, ensuring that the sound is perceived as coming from a consistent direction and location, regardless of the device's orientation or location, using sensors like accelerometers and gyroscopes, and processing units to manage these signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the acoustic output device is used without orientation-based control, then the device structure remains simple, but the sound perception consistency deteriorates
Solution Approach 1:
The system performs preliminary determination of the acoustic output device's orientation and location relative to the vehicle before generating control signals. This advance preparation allows the control system to pre-calculate the appropriate sound output configuration, ensuring consistent sound perception without adding complex real-time processing requirements.
Solution Approach 2:
The system continuously monitors the orientation and location of the acoustic output device and uses this feedback information to dynamically adjust control signals. This closed-loop approach maintains sound perception consistency by compensating for changes in device orientation and position through real-time signal adjustments.
2Ease of operation
If the acoustic output device orientation is not considered, then the control processing remains simple, but the listening experience quality deteriorates
Solution Approach 1:
The control system dynamically adapts the acoustic output based on the determined orientation of the device. By making the control signals variable rather than fixed, the system can adjust sound distribution to maintain optimal listening experience regardless of device orientation or position within the vehicle.
Solution Approach 2:
The system changes acoustic parameters such as sound distribution, volume, and directional output based on the orientation data. By modifying these acoustic parameters in response to device orientation changes, the system maintains high listening experience quality without requiring a completely complex control architecture.
3Reliability
If orientation-based control is implemented, then sound perception consistency improves, but the device complexity increases
Solution Approach 1:
The control system processes orientation and location information in segmented steps: first determining orientation, then determining location, and finally generating appropriate control signals based on both parameters. This segmentation of the control process reduces overall system complexity by breaking down the problem into manageable discrete steps.
Data Source
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AI summary
The invention relates to a method of controlling an acoustic output device (3-5) in a road-based vehicle (15) comprising: determining an orientation (18) of the acoustic output device (3-5) with respect to the road-based vehicle (15); and controlling an acoustic output function of the acoustic output device (3-5) as a function of the orientation (18) of the acoustic output device (3-5) with respect to the road-based vehicle (15).