Multi-Room Audio Processing with WiFi-BLE Hybrid Synchronization
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Solution Overview
Problem
Current multi-room audio systems face synchronization delays in WiFi networks and limited transmission range in BLE technology, leading to inconsistent audio playback and reduced immersive quality.
Innovation Solution
A method combining WiFi and BLE Auracast™ protocol for intelligent hybrid transmission, involving intelligent distance detection, synchronization algorithms, and dynamic path configuration to ensure synchronized audio data distribution across multiple rooms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If WiFi technology is used for multi-room audio transmission, then transmission range and coverage are improved, but multi-channel synchronization delay increases
Solution Approach 1:
The patent segments the transmission task by separating multi-channel audio data into independent streams, with one channel transmitted via WiFi and other channels transmitted via BLE. This segmentation allows each transmission path to be optimized independently, reducing overall synchronization delay while maintaining wide coverage.
Solution Approach 2:
The patent introduces BLE as an intermediary transmission path to complement WiFi. BLE acts as a mediator that can transmit audio channels with lower latency, thereby reducing the synchronization delay issue while WiFi provides the necessary wide area coverage.
2Loss of time
If BLE technology is used for audio transmission, then synchronization delay is reduced, but transmission range and wall-penetration capability deteriorate
Solution Approach 1:
The patent merges WiFi and BLE technologies into a hybrid transmission system. By combining the wide coverage capability of WiFi with the low-latency characteristics of BLE, the system achieves both extensive transmission range and reduced synchronization delay simultaneously.
Solution Approach 2:
The patent applies different transmission qualities to different channels based on their requirements. Channels that require low latency are transmitted via BLE, while channels benefiting from wide coverage are transmitted via WiFi. This local optimization of transmission quality resolves the contradiction between range and delay.
3Device complexity
If single transmission mode is used, then system complexity is reduced, but audio synchronization quality and transmission reliability deteriorate
Solution Approach 1:
The patent implements a dynamic transmission mode selection mechanism that automatically adjusts which channels are transmitted via WiFi and which via BLE based on real-time network conditions, device capabilities, and synchronization requirements. This dynamic approach maintains audio synchronization quality and reliability while managing system complexity through adaptive rather than static configuration.
Data Source
AI summary
A method of audio processing combining WiFi and BLE technologies includes: obtaining target audio data including multi-channel information; establishing connections among audio devices corresponding to multiple rooms through WiFi and BLE Auracast™ protocols; dynamically configuring distribution paths according to intelligent distance detection results, and obtaining a configured audio distribution network; adjusting, using a synchronization algorithm in the BLE Auracast™ protocol, a timing sequence of the target audio data, and obtaining synchronized audio data; and transmitting, according to the configured audio distribution network, the synchronized audio data via WiFi or the BLE Auracast™ protocol to each audio device for playback.