Wireless Audio Synchronization via Master-Slave Broadcast Control
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Solution Overview
Problem
Current wireless audio systems face challenges in achieving precise synchronization control among multiple devices, leading to inconsistent system operation and poor user experience.
Innovation Solution
A synchronization control method for wireless audio systems, where a master device communicates with slave devices, sending audio information at a preset audio transmission cycle and broadcast information including clock and control commands at a preset broadcast cycle, allowing each slave device to perform corresponding operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If control command information is transmitted using a different mechanism than audio information, then control functionality can be achieved, but signal transmission rules become complex
Solution Approach 1:
The patent combines control command transmission with audio information transmission by using the same audio transmission channel and protocol. Control commands are embedded within the audio data stream, allowing both audio and control functions to be achieved through a unified transmission mechanism, thereby reducing signal transmission complexity while maintaining control functionality
Solution Approach 2:
The audio transmission channel is designed to serve multiple purposes: it simultaneously transmits both audio information and control command information. This multi-functional approach eliminates the need for separate control channels, simplifying the overall signal transmission rules while maintaining full control capability
2Adaptability or versatility
If multiple devices are used in the wireless audio system, then system functionality is enhanced, but precise synchronization control among devices becomes difficult
Solution Approach 1:
The patent implements a feedback mechanism where the master device monitors the status of slave devices and adjusts control commands accordingly. Slave devices send status information back to the master device, enabling precise synchronization control across multiple devices through continuous feedback and adjustment of control parameters
Solution Approach 2:
The control system is segmented into a master device that generates control commands and multiple slave devices that execute them. This segmentation allows centralized synchronization control while maintaining enhanced system functionality through multiple devices, with the master device coordinating all slave devices to achieve precise synchronization
3Speed
If audio information is transmitted at high real-time performance, then audio quality is maintained, but synchronization control of multiple devices becomes challenging
Solution Approach 1:
The patent employs periodic transmission of control commands embedded within the audio stream at regular intervals. This periodic action ensures that synchronization control information is continuously updated without disrupting the high real-time audio transmission, maintaining both audio quality and synchronization reliability through rhythmic control signal insertion
Data Source
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AI summary
A synchronization control method for a wireless audio system and a wireless audio system are disclosed, where the wireless audio system includes a master device and a plurality of slave devices, the master device communicating wirelessly with the plurality of slave devices and the master device sending audio information to the plurality of slave devices at a preset audio transmission cycle; and the method includes: the master device being further configured to send broadcast information to the plurality of slave devices at a preset broadcast cycle, where the broadcast information includes master device clock information and control command information; and each of the plurality of slave devices performing a corresponding operation based on the broadcast information; and where at the same moment, the master device sends only one of the audio information and the broadcast information.