Multi-Zone Audio Playback Adjustment for Acoustic Isolation
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Solution Overview
Problem
Audio playback in one area of an environment can undesirably impact the acoustic experience in another, such as when high-volume audio in a living room interferes with sleep in an adjacent room, necessitating improved acoustic isolation between zones.
Innovation Solution
The system modifies audio output in one playback zone based on audio content in another zone by adjusting noise type, volume, or equalization settings to enhance acoustic isolation, using sensors, predictive models, and schedule-based rules to minimize sound propagation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If audio playback is enabled in one zone, then user can enjoy music in that zone, but audio interference occurs in adjacent zones
Solution Approach 1:
The system applies different audio playback settings to different zones based on their usage context. Zone 1 can have high-volume audio playback while Zone 2 maintains low-volume or modified audio playback, allowing each zone to have optimized audio characteristics suitable for its specific function without interfering with other zones.
Solution Approach 2:
The system dynamically adjusts audio playback parameters (volume, equalization, noise type) in real-time based on detected audio content in other zones. When high-volume audio is detected in one zone, the system automatically modifies playback in adjacent zones to reduce interference, creating an adaptive acoustic environment that responds to changing conditions.
2Illumination intensity
If high-volume audio is played in one zone, then audio quality is improved in that zone, but acoustic isolation between zones deteriorates
Solution Approach 1:
The system changes audio parameters (volume level, equalization settings, noise type) based on the playback context and detected audio content in adjacent zones. When high-volume playback is detected in one zone, the system modifies parameters in adjacent zones to maintain acoustic isolation while preserving user experience.
Solution Approach 2:
The system converts the harmful effect of sound propagation into a beneficial feature by using the detected audio content from adjacent zones to inform playback decisions. The sound that would normally be interference is used as input data to trigger appropriate playback modifications, turning the problem of acoustic coupling into a solution for adaptive zone management.
3Adaptability or versatility
If audio playback is synchronized across multiple zones, then user experience is improved, but acoustic interference between zones increases
Solution Approach 1:
The system segments the multi-zone audio system into independently controllable units that can be managed separately. Each zone can have its own playback settings, volume level, and audio content selection, allowing zones to be grouped for synchronized playback when appropriate while maintaining the ability to operate independently to prevent interference.
Solution Approach 2:
The system provides universal audio playback capability across multiple zones with the flexibility to operate in different modes. Zones can function independently with customized playback settings or be grouped for synchronized playback, allowing the system to adapt to various usage scenarios and eliminate acoustic interference by selecting the appropriate operational mode.
Data Source
AI summary
Systems and methods for modifying playback based on audio content in another zone are described. An example method includes playing back first audio content via a first zone of a media playback system according to a first parameter, and detecting playback of second audio content via a second zone of the media playback system according to a second parameter. Based on the second audio content and/or the second parameter, the first parameter can be adjusted. The first audio content is then played back via the first zone according to the first adjusted parameter.