Audio Management for Guests in Multi-Zone Vehicles
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Solution Overview
Problem
In complex vehicle audio environments with multiple electronic control units and virtual machines, coordinating audio management across different guests with varying audio management capabilities and zones is challenging, leading to inconsistent user experiences and potential audio artifacts.
Innovation Solution
A system-wide audio management mechanism is implemented, utilizing a central host audio management agent and guest audio management agents to coordinate audio stream activities, determine audio types, and send control messages for actions like suspending, resuming, and ducking audio playback, ensuring cohesive audio experiences across multiple zones and guests.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple audio sources play audio simultaneously in different zones, then audio coverage is improved, but audio coordination consistency deteriorates
Solution Approach 1:
The system divides the vehicle audio environment into multiple independent zones (e.g., driver zone, passenger zone, rear zone), each with its own audio management capabilities. This segmentation allows different audio sources to play simultaneously in different zones without interfering with each other, while maintaining overall system coordination through the host audio management agent.
Solution Approach 2:
The host audio management agent acts as an intermediary between multiple audio sources and audio sinks across different zones. It receives audio streams from various sources, determines their types and priorities, and coordinates their playback across zones, ensuring consistent audio management while allowing simultaneous audio coverage.
2Adaptability or versatility
If audio management is decentralized across multiple guests, then system flexibility is improved, but audio management complexity deteriorates
Solution Approach 1:
The system merges the audio management functions of multiple guests into a unified host audio management agent. This central coordination layer combines information from decentralized audio sources and sinks, managing audio streams, determining audio types, and coordinating playback across all zones, thereby reducing overall system complexity while maintaining guest flexibility.
Solution Approach 2:
The host audio management agent serves multiple functions: it manages audio sources, routes audio to appropriate sinks, determines audio types (e.g., media, navigation, alert), coordinates playback across zones, and handles audio stream activities. This universal audio management system replaces multiple specialized management systems, reducing complexity while maintaining flexibility.
3Stability of the object's composition
If audio streams are coordinated across multiple zones, then user experience consistency is improved, but audio processing overhead increases
Solution Approach 1:
The host audio management agent performs preliminary actions by determining audio types and establishing playback coordination before actual audio playback begins. It pre-configures audio routing, sets playback parameters, and establishes zone assignments, which reduces the processing overhead during actual audio playback while maintaining consistent user experience across zones.
Data Source
AI summary
In some examples, a control audio management engine is configured to interact with guest audio services in respective guests that have different audio management capabilities. The control audio management engine receives an indication of a start of a first audio in a first guest of the guests, the indication comprising an audio stream. The control audio management engine sends, to a second guest of the guests, control information to affect playback of a second audio that is playing in the second guest.