Vehicle Audio Sync via Server-Side Parameter Adaptation
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Solution Overview
Problem
Current audio data sharing systems between vehicles are limited in allowing simultaneous playback of the same audio content across different vehicles, especially when one vehicle receives audio from sources not accessible to another, such as DAB, due to compatibility and configuration differences in audio systems.
Innovation Solution
A vehicle-to-vehicle data communication system that includes a server to establish a wireless connection between host and client vehicles, processing and transmitting audio data to ensure synchronized playback, customizing audio based on the client vehicle's audio system configuration to maintain or enhance sound quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If audio data is transferred between vehicles with different audio system configurations, then audio content sharing is enabled, but sound quality compatibility deteriorates
Solution Approach 1:
The system changes audio parameters (format, bitrate, sample rate) based on the receiving vehicle's audio system capabilities. The server receives capability information from each vehicle and dynamically adjusts the audio data parameters during transmission to match the receiving vehicle's configuration, ensuring optimal sound quality for each device while maintaining universal compatibility.
Solution Approach 2:
The server acts as an intermediary between the transmitting and receiving vehicles. It receives audio data from one vehicle, processes it according to the receiving vehicle's capabilities, and forwards the adapted audio data. This intermediary approach allows the system to bridge different audio system configurations without requiring direct compatibility between vehicles.
2Reliability
If audio data is processed and customized for each client vehicle, then sound quality is maintained or enhanced, but system complexity increases
Solution Approach 1:
The system performs preliminary actions by collecting and storing audio capability information from each vehicle in advance. When audio data needs to be transmitted, the server already has the necessary capability information to quickly adapt the audio parameters without complex real-time analysis, reducing processing complexity while maintaining sound quality.
Solution Approach 2:
The server dynamically changes audio parameters based on pre-collected capability information. By maintaining a database of vehicle audio configurations and automatically selecting appropriate parameters from predefined options, the system avoids complex real-time processing while still customizing audio output for each vehicle's specific capabilities.
3Duration of action of moving object
If synchronized audio playback is implemented across multiple vehicles, then simultaneous audio experience is achieved, but network bandwidth requirements increase
Solution Approach 1:
The system applies local quality by transmitting different audio data versions tailored to each receiving vehicle's capabilities. Instead of sending identical high-quality audio to all vehicles, the server transmits appropriately formatted audio data for each vehicle's specific audio system, reducing total bandwidth consumption while maintaining optimal quality for each receiver.
Solution Approach 2:
The server adjusts audio data parameters (compression level, bitrate, format) based on each vehicle's capabilities and network conditions. By dynamically changing these parameters, the system optimizes the balance between synchronized playback quality and bandwidth consumption, transmitting higher quality data when bandwidth is abundant and more compressed data when bandwidth is limited.
Data Source
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AI summary
A vehicle to vehicle data communication system may include a server to communicate audio data being played in a host vehicle to a client vehicle so that both the host vehicle and the client vehicle play substantially the same audio content. The system may establish communications between the client vehicle and the host vehicle, by receiving a connection request from the client vehicle and authenticating the client vehicle and the host vehicle. The server may further receive, from the host, the audio data being played in the host vehicle and transmit the audio data to the client vehicle. The server may process the audio data and transmit the processed audio data to the client vehicle. The server may customize the audio data in accordance with the configuration of the client vehicle to maintain and/or enhance the quality of the playback of the processed audio data in the client vehicle.