When choosing a capture card for conference video capture, you need to consider the following factors to ensure that it meets your needs:
• PCI/PCIe video capture card: If your conference video equipment is fixed in a certain conference room and has high requirements for video quality and stability, you can choose a capture card with PCI or PCIe interface. They are directly installed on the computer motherboard, provide high-speed data transmission, suitable for the capture of high-resolution or multi-channel video signals, and suitable for professional conference systems.
• USB video capture card: If portability is required or occasional use, USB capture card is more convenient. It is easy to install and move, suitable for temporary conference settings or laptops, although it may not be as good as PCIe in performance, it is sufficient for most ordinary conference scenarios.
• Video input format: Make sure the capture card supports the output format of your camera or other video source, such as HDMI, SDI, VGA, DVI, etc. HDMI or SDI interfaces are usually recommended for HD conferences because they provide better image quality and stability.
• Resolution and frame rate: Choose a capture card that supports high-definition (such as 1080p, 4K) and corresponding frame rates (such as 30fps, 60fps) according to the needs of the meeting, which is essential for a clear and smooth video conferencing experience.
• Compatibility and software support: Confirm that the capture card is compatible with your operating system (such as Windows, macOS, Linux), and check whether it includes or supports the video conferencing software you plan to use (such as DingTalk, Zoom, Teams).
• Audio integration: Choose a capture card that supports both audio and video capture to ensure that the audio in the meeting can also be captured and synchronized with high quality.
• Budget: High-quality professional capture cards are expensive, so balance your choice based on your budget and meeting quality requirements.
Based on the above considerations, for a general office meeting environment, a video capture card that supports HDMI input, USB interface, is compatible with multiple operating systems, and supports specifications above 1080p/30fps can meet the needs. For example, products such as Elgato Cam Link 4K or Blackmagic Design UltraStudio Mini Recorder have a good reputation in the market and are suitable for both personal and corporate use. For professional conference rooms with higher requirements, you may need to consider higher-end PCIe interface capture cards, such as the corresponding product series from Magewell or Acasis.