Playback Device Audio Conflict Detection Across Listening Zones
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Solution Overview
Problem
Existing media playback systems lack the ability to dynamically adjust audio characteristics based on user behavior and location, resulting in a less immersive and adaptable listening experience.
Innovation Solution
Implementing a media playback system that uses playback devices to generate music and adjust audio characteristics in real-time based on user inputs such as location, time of day, weather, and physiological inputs, and synchronizes audio playback across multiple zones to enhance the listening experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple playback devices play different audio content simultaneously in different zones, then user customization and zone independence are improved, but audio conflict and interference between zones worsen
Solution Approach 1:
The system applies local quality by allowing each playback zone to have independent audio characteristics and content selection. Each zone can be customized with different audio sources, volumes, and settings without affecting other zones, while the hearing range detection ensures that locally optimized audio does not create harmful interference in adjacent zones.
Solution Approach 2:
The system implements feedback by having playback devices detect audio content from other devices within their hearing range. This feedback mechanism allows the system to identify potential audio conflicts and coordinate between zones to prevent harmful interference, while maintaining zone independence for non-conflicting audio content.
2Reliability
If playback devices detect and respond to audio from other devices, then audio conflict resolution is improved, but device complexity and processing requirements worsen
Solution Approach 1:
The system applies partial action by having playback devices detect only audio content within their specific hearing range rather than monitoring all possible frequencies and zones comprehensively. This selective detection approach provides sufficient conflict resolution capability while reducing the processing complexity and computational requirements compared to complete system-wide monitoring.
3Device complexity
If audio content is synchronized across multiple zones, then system simplicity and coordination are improved, but user customization and zone independence worsen
Solution Approach 1:
The system implements dynamics by allowing audio synchronization to be applied selectively rather than uniformly across all zones. The system dynamically determines which zones should be synchronized based on hearing range detection and conflict analysis, enabling simple coordinated playback in some scenarios while maintaining independent zone control in others, thus adapting to different user needs and spatial configurations.
Data Source
AI summary
An example playback device is a first playback device in a media system. The first playback device is configured to resolve audio conflicts with one or more other playback devices in the media system by: (i) capturing, via a microphone of the first playback device, audio content played back by a second playback device, (ii) identifying the second playback device as a source of the captured audio content; and (iii) responsive to identifying the second playback device as the source of the captured audio content, altering a playback characteristic of the second playback device or the first playback device to reduce an audio interference between the first and second playback devices.