Video Switcher: The next generation switch
The Video switcher is a hardware device which allows multiple computers to share one video display like monitors, projectors etc which have VGA ports. By daisy chaining these devices a greater number of computers can be connected. Mainly used in video and film production, these devices allow switching between different video and audio sources. This enables mixing of videos and addition of special effects or shots captured on a secondary source. Even though more than one display device is connected to the source, these switches maintain video clarity and provide sharp and clear images.
Also known as the VGA switcher, it is used when you need to switch video from multiple video sources to one video device. This hardware device plays an essential role in conference rooms, classrooms and presentations and can also be used for remote monitoring. Controlled by the buttons placed in the front of the unit, these devices are connected through VGA cables which connect them to the video source and display. Available in multiple sizes of 2, 4 and 8 port units, these switches can be cascaded. With the advent of technology, many different types of these switches are available in the market today. The variation in the models is due to the type of video signals which are relayed.
The HDMI switcher (High Definition Multimedia Interface), is the latest in the category of video switchers. It allows multiple devices with HDMI such as computers, DVD players, D-VHS players or set top boxes to output video to one HDMI display device. With simple push button control on the front of the unit, it allows switching between the connected devices. It is nothing but a compact audio / video connector which transmits uncompressed digital streams. Compatible with all HDMI- equipped and HDCP- enabled HDTV devices, this switch uses a single cable to connect from HDMI video source to HDMI / HDTV video display. Available with 2, 3, and 4 ports, these devices are capable of maintaining high video resolution.
The combination of a Video switcher and a video splitter in one unit gives birth to video matrix switch which enables you to route video from multiple computers to multiple displays.
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