Camera Audio Latency Synchronization for Multi-Device Recording
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Solution Overview
Problem
Data processing errors occur when multiple electronic devices are not synchronized or misaligned during the processing of image and audio data.
Innovation Solution
An electronic device synchronizes image and audio data by determining and adjusting audio latencies using processors and communication circuits to generate synchronized image content.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If audio data is received from an external electronic device, then audio processing functionality is enhanced, but audio latency and synchronization errors occur
Solution Approach 1:
The patent applies preliminary action by determining the audio latency value in advance before actual audio processing occurs. The processor calculates the latency based on buffer sizes and processing speeds, then uses this pre-determined value to set the reproduction timing offset. This ensures that audio data from external devices is synchronized with image data without real-time delays or synchronization errors.
2Adaptability or versatility
If audio data from external devices is used, then recording functionality is expanded, but synchronization errors with image data occur
Solution Approach 1:
The patent implements feedback by continuously monitoring and calculating the actual audio latency based on buffer sizes and processing speeds, then using this information to adjust the reproduction timing offset. The system determines the latency value dynamically and applies it to synchronize audio data with image data, ensuring accurate synchronization while maintaining expanded recording functionality from multiple devices.
3Adaptability or versatility
If multiple devices are used for data processing, then functional capabilities are enhanced, but data processing errors increase due to misalignment
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting the reproduction timing offset parameter based on calculated audio latency values. The processor modifies this timing parameter to compensate for delays introduced by external devices, ensuring that audio and image data from multiple devices are properly aligned and processed without synchronization errors or data processing inaccuracies.
Data Source
AI summary
An example electronic device includes a camera, a communication circuit, a memory, and at least one processor. The memory stores instructions that, when executed by the at least one processor, cause the electronic device to obtain image data using the camera, receive audio data recorded by an external electronic device and information on first audio latency from the external electronic device, determine a second audio latency required to process the received audio data by the at least one processor, determine a third audio latency based on the first audio latency and the second audio latency, determine a difference between a preset initial audio latency and the third audio latency, synchronize the audio data with the image data based at least in part on the difference, and generate an image content including the image data and the audio data based at least in part on the synchronization result.