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Video capture is the process of converting an analog video signal—such as that produced by a video camera, DVD player, or television tuner—to digital video and sending it to local storage or to external circuitry. The resulting digital data are referred to as a digital video stream, or more often, simply video stream.
These schemes combined VGA or digital video, audio, FireWire, and USB signals into a single connector. Deprecated. Made obsolete by DFP and later DVI. HDI-45: Apple proprietary. Combines Analog VGA out, stereo analog audio out, analog microphone in, S-video capture in, Apple desktop bus interface.
The ATI Twin Wonder TV tuner card. A TV tuner card is a kind of television tuner that allows television signals to be received by a computer. Most TV tuners also function as video capture cards, allowing them to record television programs onto a hard disk much like the digital video recorder (DVR) does. A DVB-S2 tuner card D-Link external TV tuner
Analog television is the original television technology that uses analog signals to transmit video and audio. [1] In an analog television broadcast, the brightness, colors and sound are represented by amplitude , phase and frequency of an analog signal.
The Dazzle is a family of external video capture devices that allow people to record video from analog composite video sources (DVD player, VCR, etc.) over USB (originally parallel). [1] Most models are also capable of recording analog stereo audio.
A frame grabber is an electronic device that captures (i.e., "grabs") individual, digital still frames from an analog video signal or a digital video stream. It is usually employed as a component of a computer vision system, in which video frames are captured in digital form and then displayed, stored, transmitted, analyzed, or combinations of ...
525-line (or EIA 525/60) is an American standard-definition television resolution used since July 1, 1941, [1] [2] [3] mainly in the context of analog TV broadcast systems. It consists of a 525-line raster , with 486 lines carrying the visible image at 30 (29.97 with color) interlaced frames per second.
Some TV tuner cards or video capture cards will support this mode (although software/driver modification can be required and the manufacturers' specs may be unclear). Some DVD players offer a choice of PAL vs NTSC output for NTSC discs.
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