The unique device of multimedia computers is the video card. The video card is used to input video data output from analog cameras, video recorders, LD video disk players, video signals output by televisions, etc., or mixed data of video and audio, into the computer. , and converted into digital data that can be discerned by the computer, stored in the computer, and become a video data file that can be edited and processed.
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The unique device of multimedia computers is the video card.
Related introduction:
Video Capture card (Video Capture card) is also called a video card, which is used to capture video data output from analog cameras, video recorders, LD video disc players, and television output video signals. Or the mixed data of video and audio is input into the computer, converted into digital data that can be discerned by the computer, and stored in the computer to become a video data file that can be edited and processed. According to their uses, they can be divided into broadcast-level video capture cards, professional-level video capture cards, and civilian-level video capture cards.
Principle
Video capture card, also known as video capture card, can be used to obtain digital video information, store and play it. Many video capture cards can capture video information and obtain accompanying sound at the same time, so that the audio part and the video part can be saved and played simultaneously during digitization.
Video capture card, "Video Capture Card", its function is to capture video signals into the computer and save them on the hard disk in the form of data files. It is an indispensable hardware device for video processing. It can be used for post-editing and processing of digital video signals, such as cutting pictures, adding filters, subtitles and sound effects, setting transition effects, adding various video special effects, etc. , and finally convert the edited video signal into standard VCD, DVD and online streaming media formats for easy dissemination.
Video (Video) is a mixed media in which multiple still images (image frames) and continuous audio information move synchronously on the timeline. The multiple frame images change over time to create a sense of movement, so it is also called video. for moving images. According to the different storage and processing methods of video, it can be divided into analog video and digital video.
Video acquisition is to convert the analog signal of the video source into a digital signal (i.e. 0 and 1) through processing, and convert the The process by which this digital information is stored on a computer's hard drive. This analog/digital conversion is performed through the capture chip on the video capture card.
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