Multi-Zone Audio Playback Control for Source Synchronization
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Solution Overview
Problem
Current wireless speaker systems lack efficient methods for synchronizing and controlling audio playback across multiple zones in a home environment, leading to inconsistencies and user experience issues when playing different audio sources simultaneously.
Innovation Solution
The implementation of a zone player system with networked playback devices and controllers that allow for dynamic configuration and synchronization of audio playback across multiple zones, enabling simultaneous playback of different audio sources through a data network, using wireless and wired interfaces, and integrating features like grouping, consolidation, and pairing of zone players.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple wireless speakers are used to play different audio sources simultaneously in different zones, then audio playback versatility is improved, but synchronization and control consistency deteriorate
Solution Approach 1:
The system segments the audio playback system into independent controllable zones, where each zone player can handle different audio sources simultaneously. The controller divides control functions into discrete commands that can be independently managed for each zone, allowing versatile playback while maintaining synchronization through structured control segmentation.
Solution Approach 2:
A central controller acts as an intermediary between multiple audio sources and zone players. The controller receives control inputs and translates them into coordinated commands for different zones, ensuring synchronization consistency while allowing each zone to play different audio content. The controller mediates the communication protocol to maintain system-wide coordination.
2Ease of operation
If a centralized control system is implemented to manage multiple zone players, then control functionality is improved, but system complexity increases
Solution Approach 1:
The controller is designed with multi-functionality to handle various control operations (play, pause, volume, source selection) across multiple zones through a single device. This universal control approach improves ease of operation without requiring separate control systems for each zone, managing complexity through consolidation of control functions.
Solution Approach 2:
The system uses parameter-based control where the controller adjusts playback parameters (volume, timing, source selection) for each zone independently through standardized commands. This parameterized approach allows complex multi-zone control to be managed through simple parameter adjustments rather than complex control logic.
3Adaptability or versatility
If wireless communication is used between controller and zone players, then installation flexibility is improved, but communication reliability may deteriorate
Solution Approach 1:
The control protocol uses standardized command copies that can be transmitted reliably over wireless communication. Control commands are structured as standardized data packets that can be replicated and retransmitted if needed, ensuring communication reliability while maintaining wireless installation flexibility. The protocol includes error checking and retransmission mechanisms.
Data Source
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AI summary
Systems, methods, apparatus, and articles of manufacture to control audio playback devices are disclosed. An example audio playback device includes an audio output device to generate audio signals based on a signal source, a device interface to receive a first message from a first audio information source, and a source selector to change the signal source from a second audio information source to the first audio information source based on the first message.