Bluetooth LE Audio Broadcast Volume Sync Across Member Devices
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Solution Overview
Problem
The Bluetooth LE Audio technology does not provide a mechanism for flexibly adjusting audio volume, particularly synchronizing audio volume across multiple Bluetooth devices, leading to potential discomfort and hindering its development in audio broadcasting applications.
Innovation Solution
A Bluetooth audio broadcasting system that includes an audio broadcasting device transmitting volume instructions to multiple Bluetooth member devices, allowing them to configure and adjust their audio playback volumes accordingly, ensuring synchronized and comfortable audio playback.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the BLE Audio technology is used for audio broadcasting without volume configuration instructions, then the audio transmission quality and power efficiency are improved, but the audio volume becomes unpredictable and may cause user discomfort
Solution Approach 1:
The audio broadcasting device sends volume configuration instructions to member devices before actual audio broadcasting. This preliminary action allows receiving devices to pre-configure their audio playback volumes based on the provided volume information, ensuring comfortable and predictable audio experience from the start without requiring user manual adjustment.
2Device complexity
If a single audio volume configuration is used for all Bluetooth member devices, then the system complexity is reduced, but it cannot meet the different requirements of different users simultaneously
Solution Approach 1:
The system provides individualized volume configuration by sending separate volume instructions to each Bluetooth member device. Each device can independently configure its audio playback volume according to its own characteristics and user preferences, allowing different users to have customized audio experiences while maintaining a relatively simple overall system architecture.
3Device complexity
If the audio volume is not configured in advance for multi-member Bluetooth devices, then the device complexity is reduced, but the audio broadcasting application development is hindered
Solution Approach 1:
The patent implements a universal volume configuration mechanism that works across different Bluetooth member devices and various audio broadcasting applications. By establishing a standardized process where the audio broadcasting device sends volume instructions and member devices configure their volumes accordingly, the system provides adaptability for diverse applications while maintaining manageable device complexity through a unified approach.
Data Source
AI summary
A Bluetooth audio broadcasting system includes: an audio broadcasting device, a first Bluetooth member device, and a second Bluetooth member device. The audio broadcasting device broadcasts BLE audio packets. After the first Bluetooth member device issues a volume adjusting request, the audio broadcasting device transmits a volume adjusting instruction to the first Bluetooth member device and the second Bluetooth member device. The first Bluetooth member device acquires a predetermined audio data from the BLE audio packets, controls a first audio playback circuit to playback the predetermined audio data, and adjusts an audio volume of the first audio playback circuit according to the volume adjusting instruction. The second Bluetooth member device acquires the predetermined audio data from the BLE audio packets, controls a second audio playback circuit to playback the predetermined audio data, and adjusts an audio volume of the second audio playback circuit according to the volume adjusting instruction.