Wireless Audio Transmission Latency Reduction
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Solution Overview
Problem
Conventional binaural wireless headset audio data transmission methods suffer from high signal latency due to the need for wireless communication between audio playback devices.
Innovation Solution
A method and system where an audio data sending device sends audio packets simultaneously to both audio playback devices, with each device feeding back response messages in sequence, eliminating the need for direct communication between them and simplifying synchronization and control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If audio packets are transmitted from the audio signal source to the primary Bluetooth earbud, which then parses and transmits to the secondary Bluetooth earbud, then the audio data can be delivered to multiple devices, but the signal latency increases due to the additional data transmission and processing steps
Solution Approach 1:
The patent segments the audio packet transmission by sending separate audio packets to each Bluetooth earbud simultaneously from the audio signal source, rather than transmitting through a primary earbud. This segmentation eliminates the sequential transmission bottleneck and reduces signal latency while maintaining system simplicity.
Solution Approach 2:
The patent removes the primary Bluetooth earbud as an intermediary in the transmission path. Instead of having the audio signal source transmit to the primary earbud which then forwards to the secondary earbud, the audio signal source directly transmits to both earbuds simultaneously, eliminating the intermediary's processing delay.
2Reliability
If wireless communication is established between the first audio playback device and the second audio playback device for data transmission, then coordination between devices is achieved, but the system complexity increases and signal latency increases
Solution Approach 1:
The patent extracts the wireless communication connection between the two audio playback devices from the system. Instead of establishing a direct wireless link for data transmission between devices, the audio signal source independently transmits to each device, eliminating the need for inter-device wireless communication and reducing system complexity.
Solution Approach 2:
Each audio playback device independently receives and processes audio packets directly from the audio signal source without requiring coordination or communication with the other device. This self-service approach maintains device independence and simplifies the overall system architecture while ensuring reliable operation.
Data Source
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AI summary
The present disclosure provides a method and system for transmitting audio data wirelessly. The method comprises in each cycle of at least one cycle: sending, by an audio data sending device, an audio packet simultaneously to both a first audio playback device and a second audio playback device; and feeding back respective response messages to the audio data sending device by the first audio playback device and the second audio playback device in sequence in response to receiving the audio packet for playback. Thus, the audio data can be played at low latency according to the present disclosure.