SD capture cards have gradually ceased to meet the requirements of every field, and the adoption rate of HD capture cards has gradually become more popular. Generally, HD capture cards will have inputs such as color difference, AV, and S-video, and some also have HDMI, etc. Digital interface, the highest resolution reaches 1920×1080, which greatly meets the needs of various high-definition cameras. It can capture multiple resolution sources from high-definition 720P, 1080i to standard definition 480i/480P. A good high-definition capture card can capture full-resolution high-definition uncompressed video, ensuring that the high-definition program generated from high-definition material output completely retains the original Image quality
In terms of software compatibility, codec quality and system stability, it is also a sign of whether a high-definition capture card is good. In addition, whether third-party software and development tools support the standard DIRECT SHOW API for development, whether an SDK secondary development kit is provided, and whether it is compatible with a variety of common non-editing software, such as Adobe Premiere pro, etc. Many capture card manufacturers, such as AVerMedia and other established capture card manufacturers, have launched cost-effective high-definition capture cards, which have greatly lowered the threshold for full-resolution live high-definition production. In the increasingly emerging high-definition capture fields such as educational recording and broadcasting, , online video conferencing and remote training, high-definition medical treatment, stunt booths and other multimedia high-definition video collection are widely used in high-definition video capture cards. VGA capture cards are the most popular. They can not only capture computer screen signals, but also capture high-definition video. VGA camera signal, medical VGA equipment instrument signal, etc. Its application range is very wide, especially in video conferencing, webcasting, distance teaching, and projection integration. However, there are many image capture cards on the market. How to correctly choose a VGA capture card?
1. Before purchasing a VGA capture card, you should clearly understand the purpose of the demand, such as the resolution that needs to be achieved. Rate and soft compression mode or hard compression mode, supported software, etc. There are many models of VGA capture cards on the market. They may be manufactured by different manufacturers, and each model of VGA capture card focuses on a specific function. Therefore, it is best before purchasing a VGA capture card. It is best to clarify the purpose of purchasing a capture card.
2. Secondly, the built-in video capture card is mainly divided into two slot interfaces, PCI-E and PCI. The bandwidth transmission speed of the PCI-E slot is twice that of PCI, so most of them High-definition video capture cards all use PCI-E slot interfaces, which requires that the motherboard you use has such a slot.
3. Finally, video resolution is very important for video applications, such as online video live broadcast, Internet video, etc., all have certain requirements for video resolution, and the high-definition standard is very useful for publicity and effect. Benefits. The high-definition video capture cards launched by Vision Image all support high-definition 1920x1440 resolution, and can automatically identify and automatically adapt to its resolution.
4. In addition, professional VGA capture cards are relatively expensive and cannot be compared with ordinary video capture cards, and their performance is outstanding. When purchasing a VGA capture card, you need to consider it from your own or the user's perspective, both to meet your needs and to save costs