By PURPLELEC | 24 September 2024 | 0 Comments
How to reduce the latency of Pro Capture cards
Many factors can introduce delays in a workflow, such as capture cards, applications, and operating systems. To reduce the latency of the Pro Capture card, you can start from the following aspects:
1. Use low-latency mode
Pro Capture series capture cards support low-latency capture (note that the USB Capture series and first-generation capture devices may not support this feature). In low-latency mode, the acquisition card will start transmitting to the host memory after collecting part of the row data to the board memory, thereby significantly reducing the acquisition delay. In this mode, latency can be reduced to 64 lines or less, depending on the capture card model and configuration.
2. Optimize acquisition software and system settings
Update firmware: Make sure your Pro Capture card's firmware is up to date, as new versions may include performance improvements and latency-reducing optimizations.
Adjust acquisition software settings: In the acquisition software, check and adjust encoding parameters to reduce processing delays. For example, reducing video resolution, frame rate, or adjusting encoding quality can reduce latency to a certain extent.
Turn off unnecessary software functions: During the collection process, turn off unnecessary software functions that may occupy system resources, such as real-time preview, special effects processing, etc., to reduce interference to the collection process.
3. Check and optimize hardware connections
Make sure the bandwidth is sufficient: Check whether the USB or PCIe bandwidth is sufficient to transmit the current video stream. Use the appropriate tool (such as USB Capture Utility V3) to view the current USB speed or PCIe bandwidth usage and make sure they do not exceed the upper limit.
Use high-quality connecting cables: Using high-quality connecting cables can reduce attenuation and interference during signal transmission, thereby reducing latency.
4. Upgrade hardware
Upgrade the host configuration: If possible, upgrade the computer's host configuration, such as CPU, memory, and graphics card, to improve overall processing capabilities and reduce latency.
Replacing a higher-performance capture card: If the performance of the current capture card cannot meet your needs, you can consider replacing it with a higher-performance Pro Capture series capture card.
5. Other matters needing attention
Avoid multi-tasking: During the collection process, try to avoid performing other high-load tasks at the same time, such as large-scale games, video editing, etc., to reduce the occupation of system resources.
Regular maintenance: Regular maintenance of computers and capture cards, such as cleaning dust, updating drivers, etc., to ensure that they are in optimal working condition.
In summary, reducing the latency of the Pro Capture card requires starting from many aspects, including using low-latency mode, optimizing capture software and system settings, checking and optimizing hardware connections, upgrading hardware, and paying attention to other related matters. Through the implementation of these measures, the delay problem during the collection process can be significantly reduced.
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