Apple Final Cut Pro 7 User Manual Page 197

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DVI
Digital Visual Interface (DVI) transfers full-resolution analog or digital signals between
computers or HD video devices and flat-panel displays or projectors. DVI connectors have
up to 24 pins plus 4 additional pins for analog signals. Not all devices use all pins, so read
the documentation included with your equipment before purchasing DVI cables and
making connections.
DVI connector
DVI supports single- and dual-link connections. Single-link DVI connections are limited
to 2.6 megapixels with a refresh rate of up to 60 Hz. Dual-link DVI connectors extend the
number of pixels that can be transferred per second to drive larger displays.
DVI-I (single link) DVI-I (dual link) DVI-D (single link) DVI-D (dual link)
HDMI
High Definition Multimedia Interface (HDMI) supports both digital television and computer
signals and can also include multiple digital audio channels. HDMI devices are compatible
with single-link digital DVD signals via an adapter, although no audio or additional
metadata can be included. Many HD display devices and digital television set-top boxes
include HDMI connectors.
HDMI connector
Connecting Professional Video Devices
Regardless of what format or video interface you use, the same basic steps apply when
you connect a VTR or camcorder to your computer.
Connecting Professional SD Video Devices
If youre using a format other than DV, such as Betacam SP or Digital Betacam, you need
to install a third-party video interface that supports the proper signal for the format you’re
using. Some video interfaces can digitize analog video input and output (for analog
formats like Betacam SP), while others capture video only if it is already digital. In either
case, the video interface encodes the video information using a codec, which may or may
not apply compression to the video data to make it smaller while stored on disk.
Compression settings used by video interfaces are typically controlled by software.
197Chapter 12 Connecting Professional Video and Audio Equipment
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