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How to reduce the latency of Pro Capture cards

In the workflow, many factors may bring in latency, for example, the capture card, the application, and the operating system.

How to reduce the latency

    • You can enable the Low latency mode in the driver panel of Pro Capture card, but it will affect the performance of multiple streaming. Steps of how to enable Low latency mode are as follows:

Call the driver panel of capture card, click the the Capture tab in the Video tab page, and then select the Low latency mode check box.

Turn on the low latency mode in the driver panel

  • You can also integrate your application with Magewell SDK and call the API of partial completion notification feature to achieve lower latency.

The test results based on Pro Capture HDMI 4K PLus

The test results based on Pro Capture HDMI 4K PLus

Processing latency: the time it takes the application to process one frame

Total latency: the time gap from the entry of one frame to being completely processed by the application

Test application: libjpeg-turbo (used to compress captured images as JPEG files)

Delay in different modes

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