Vehicle Speaker Positioning for Open-Air 3D Surround Sound
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Solution Overview
Problem
Existing car speakers are inadequate for providing high-quality 3D surround sound in open spaces, limiting their use scenarios and user experience, especially during outdoor events where traditional portable speakers are not sufficient.
Innovation Solution
A car audio playback method and system that integrates multiple vehicle-mounted external speakers to form a large mobile combination speaker, controlled by a device that determines optimal speaker positions and playback parameters based on user-defined areas and listener quantities, creating a 3D surround sound field.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If car speakers are used to provide audio playback in open spaces, then the mobility and convenience are improved, but the sound quality and 3D surround sound effect deteriorate
Solution Approach 1:
The patent combines multiple car speakers into a coordinated network system that works together to provide 3D surround sound in open spaces. By merging the capabilities of multiple speakers and coordinating their playback, the system achieves high-quality spatial audio while maintaining the mobility advantage of using car-based speakers.
2Reliability
If multiple cars are coordinated to form a large mobile combination speaker, then the 3D surround sound field is improved, but the system complexity increases
Solution Approach 1:
The patent divides the large-scale audio system into independent car units, each capable of autonomous operation. Each car speaker system is segmented as an independent node that can be individually controlled and positioned, simplifying the overall system architecture while enabling coordinated 3D surround sound playback across multiple vehicles.
Solution Approach 2:
The control device is designed to universally manage multiple car speakers with different configurations. It can adapt to various numbers of cars, different speaker arrangements, and diverse playback scenarios, reducing system complexity by providing a unified control mechanism that handles multiple functions and configurations.
3Adaptability or versatility
If car speakers are positioned according to irregular site shapes, then the adaptability to different venues is improved, but the difficulty of determining optimal positions increases
Solution Approach 1:
The control device receives feedback information about the site shape and characteristics, then automatically determines optimal car speaker positions based on this feedback. The system adjusts positioning decisions according to the actual venue geometry, whether regular or irregular, reducing the manual planning effort while maintaining high adaptability to different locations.
Data Source
AI summary
A car audio playback method includes: obtaining a request to play audio data, the request at least indicating first area information of a first area for listening to the audio data; determining vehicle quantity information of target cars, each target car including at least one vehicle-mounted external speaker to play the audio data toward the outside of the target car; based on the first area information and the vehicle quantity information, determining a target position of each target car; outputting the target position such that each target car moves to the target position; and controlling each target car to play the audio data via the at least one vehicle-mounted external speaker at its target position.