Wireless Audio Synchronization via Delay Compensation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Wireless audio recording technologies face challenges in achieving synchronization due to latency and connection interruptions, making it difficult for multiple devices to record simultaneously without time shifts or data loss.
Innovation Solution
A method that establishes wireless connections between a master device and multiple recording devices, determines data transmission delays, and synchronizes the playback of reference data by accounting for these delays, ensuring that all devices play back the reference signal simultaneously, thus enabling synchronized recording.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If wireless data transmission connections are established between master device and multiple recording devices, then flexibility in positioning and ease of operation are improved, but data transmission delay and synchronization precision deteriorate
Solution Approach 1:
The system performs preliminary actions by determining data transmission delays for each wireless connection before the actual audio recording begins. The master device calculates the delay values and communicates them to the respective recording devices in advance, allowing each device to pre-adjust its timing parameters. This preliminary calibration ensures that when recording starts, all devices are already synchronized despite varying wireless transmission delays, thus resolving the contradiction between wireless flexibility and synchronization precision.
2Manufacturing precision
If data transmission delay is compensated to achieve synchronous playback, then synchronization precision is improved, but device complexity and measurement precision requirements increase
Solution Approach 1:
The master device serves as an intermediary that centralizes the complex synchronization management tasks. Instead of requiring each recording device to independently calculate and adjust for transmission delays, the master device determines the delay values for all connections and distributes the appropriate compensation parameters to each device. This intermediary approach simplifies individual device complexity while achieving precise synchronization across the entire system.
3Ease of operation
If wireless connections are used for audio transmission, then ease of operation and positioning flexibility are improved, but reliability and data loss risk worsen
Solution Approach 1:
The system implements feedback mechanisms where the master device continuously monitors the status of wireless data transmission connections to each recording device. When connection interruptions or data transmission issues are detected, the master device can identify which specific connection has failed and request retransmission or alternative routing of the reference data and audio signals. This feedback-based error handling maintains reliability despite the inherent instability of wireless connections, allowing the system to recover from interruptions without compromising the overall recording quality.
Data Source
Figure 1
Figure 2
AI summary
Method and system for synchronously recording audio, comprising: (a) setting up a first wireless data transmission connection between a master device and a first recording device, (b) setting up a second wireless data transmission connection between the master device and a second recording device, (c) determining a first data transmission delay for the first data transmission connection, (d) determining a second data transmission delay for the second data transmission connection, (e) transmitting predetermined reference data from the master device to the first recording device and to the second recording device, (f) at the first recording device: playing back the predetermined reference data and recording first recording data, and (g) at the second recording device: playing back the predetermined reference data and recording second recording data, (h) wherein, during the process of transmitting the predetermined reference data, a difference between the first data transmission delay and the second data transmission delay is taken into account in such a way that the predetermined reference data are played back at the first recording device and the second recording device synchronously.