Video capture card mining

1. Most DVS with mini tape have 1394 interface (but a few are USB, for example, Samsung has one). It's time to transfer the things on the tape to the computer. The computer must have 1394 interface. This interface is not as standard as USB, and many mainboards don't have it (laptop computers generally have it), so we need to add a 1394 interface card to let the computer have 1394 interface
as for the video capture card you mentioned, it can be divided into soft card and hard card. The soft card is actually a 1394 interface card. It uses avi format to transmit the things on the tape to the computer hard disk without compression. The hard card has the functions of real-time compression and real-time special effects. It can compress and add special effects while transmitting data
both the interface card and the soft compression card capture the original video, so the file is very large. Generally, the video file in one minute will be about 100MB. In the future, if you want to burn it into VCD or DVD, you need to rely on the software, and use the CPU of the computer to complete the compression function, which is very slow. Hard card can be compressed in real time, so the speed is fast, and the effect is generally good, of course, it will be much more expensive.

2. Video capture card is a device that converts analog signal of traditional camera into digital signal that can be recognized and stored by computer. It needs to be inserted into computer (PCI, USB). PCI-E can work only when the driver is installed. It can be used to make CD, but most of them are used in monitoring system, including 4-way video, 8-way and 16 way. As the name suggests, there are several channels that can receive several video signals, that is, several cameras
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3. Video capture card is also called video capture card. It can be used to digitize video information and store or play the digitized information. Most of the video capture cards can capture the video information and record the accompanying sound at the same time. In addition, many video capture cards also provide hardware compression function, the acquisition speed is fast, and the full screen video capture of 30 frames per second can be realized. Depending on the different compression formats, some video files compressed by this kind of capture card need corresponding decompression hardware to be realized when they are played back. These video capture cards are sometimes called compression cards. Using video capture card, we can convert the original video tape into digital information that can be recognized by computer, and then make it into VCD; It can also get video information directly from the camera, so as to edit and make its own video programs. The video capture card is to input the video data or the mixed data of video and audio output from analog camera, video recorder, LD video disc and TV into the computer, and then convert it into the digital data that can be recognized by the computer, which is stored in the computer and becomes the video data file that can be edited and processed

according to their uses, they can be divided into broadcast level video capture card, professional level video capture card and civil level video capture card. Their grades are mainly different in the quality of captured images.

4. The image capture card is Osprey
210
video capture card, which belongs to the standard definition capture card.
the video capture card can input the video data or the mixed data of video and audio output from the camera, video recorder, LD video disc and TV into the computer, and convert them into digital data that can be identified by the computer and stored in the computer, The video capture card can also broadcast these video signals through software for real-time broadcast www.videoedit.com.cn There are many types of video capture cards for reference.
different capture cards can be divided into:
1,
according to the computer connection: built in capture card (PCI or PCI-E slot connection),
2 External capture card (USB video capture card)
2,
according to the video compression mode, it can be divided into soft compression card (consuming CPU resources) and hard compression card< For example, moviemaker
200dvd belongs to hard card, Osprey
210
belongs to soft card
3,
according to the types of video signal input and output interface, it can be divided into 1394 acquisition card (obsolete), HDMI acquisition card, SDI acquisition card, DVI acquisition card, VGA acquisition card, color difference component acquisition card, AV acquisition card, s terminal acquisition card< For example, the dvi2usb
3.0
belongs to DVI acquisition card, av.io
4K
belongs to HDMI acquisition card
4,
according to the resolution of output video signal, it can be divided into 4K Ultra HD video acquisition card, 2K Ultra HD video acquisition card, 1080p HD video acquisition card, 720P HD video acquisition card and SD acquisition card
5.
according to its function, it can be divided into screen capture card, USB video capture card, image capture card, computer capture card, monitoring capture card, multi screen capture card, notebook capture card, DVR card, VCD card, ecational video capture card, medical image capture card, game capture card and non-linear editing card
6.
according to their uses, they can be divided into broadcast level video capture card, professional level video capture card and civil level video capture card, and their grades are mainly different in the quality of captured images.

5. The video capture card and the video capture box are the same in terms of function. The video capture card belongs to the built-in capture card, which is installed in the PCI / PCIe slot of the desktop computer. The video capture box belongs to the external capture card, which uses the USB interface,

6. 1394 card or composite video capture card? Is the driver installed
should that be a TV card? There is an option in the capture of audio and video. There are video and audio capture attribute settings. Select the video combination. If not, you can connect the closed line to see if TV programs can be captured. You can try the program that comes with the capture card.

7. First of all, you need to know that the effect of 100 and 1000 acquisition cards is the same. They all use a kind of chip, which is proced in Texas. There are two main differences between the acquisition cards of different prices: the attached software, whether the audio and picture can be collected separately. There is almost no difference between software and editing software, because you have to edit after you have finished collecting films. Editing software has collection function, and the simple one is the most easy to use. As for the separate acquisition of sound and picture, it's even more useless. This kind of acquisition card is too expensive for ordinary people to accept. Besides, unless you are a professional film and television editor, it can only add trouble to you. Based on these two points, you should know that 100 and 1000 acquisition cards have the same effect for ordinary family users. It is recommended that you buy a 200 yuan acquisition card with similar workmanship, If you have money, you can put it into CPU and memory. The demand for video is very high, and the more the better

8. Most of the video capture cards have 8 channels, so it's OK to connect all four cameras, and there are 4 more channels for standby. But as you said upstairs, if you buy a hard disk video recorder, you don't need to install another video capture card. The 4-way hard disk video recorder costs about 2000 yuan, and the 8-way hard disk video recorder costs more than 3000 yuan.

9. How many prices are there, the key depends on how you choose. You can choose the brand of biaz and buy it in a certain East. Drive free, USB 3.0 interface, HD 4K ring out, type-C interface power supply, really can.

10. Video capture card can be divided into soft compression card (consuming CPU resources) and hard compression card according to video compression mode. One is realized by software, and the other by hardware. There is a difference between the two. You can check the difference in price and technology yourself. I won't go into details.