Apple Final Cut Pro 5 User Manual Page 166

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Chapter 12 Designing Your Editing System 165
III
Video Interfaces
To connect video devices to your computer for capturing and outputting video, your
computer needs a video interface. The video interface may be the built-in FireWire port
(when using DV video), a third-party PCI video interface card, or a device such as an AJA
Io, which is a self-contained video interface that connects to your computer via FireWire.
FireWire (for DV)
If you are using DV video, you can capture and output DV video via your computers
built-in FireWire port. Final Cut Pro natively supports (meaning no additional hardware
is required) DV camcorders and VTRs with a FireWire connection for input and output.
Note: DV refers to the entire range of DV formats: DV, DVCAM, DVCPRO, DVCPRO 50,
and DVCPRO HD.
PCI Video Interface Card
If you are using professional analog or digital formats (either SD or HD) without native
FireWire connectivity, you need to purchase and install a PCI video interface card to
connect your video deck or camcorder to your computer. Many PCI interface cards
come with a breakout box where video, audio, and perhaps even 9-pin remote
connectors are located (rather than on the PCI card itself). Interface cards are also
referred to as video cards, or capture cards. This is not the same as the video graphics
card used to send signals to your main computer display.
AJA Io—FireWire for Uncompressed Digital Video (not DV)
The AJA Io is an external video and audio interface that conveniently connects to your
computer via FireWire. Instead of transferring compressed DV signals, the Io transfers
an uncompressed component 4:2:2 signal via FireWire, and has a wide range of analog
and digital connectors for both video and audio. Several models of the Io exist, for
digital, analog, or multiformat connectivity.
Important: DV video and FireWire are not interchangeable terms. While almost all DV
devices use FireWire to transfer DV video and audio, not all FireWire devices use DV. For
example, a FireWire hard disk uses FireWire to transfer any kind of digital data between
the hard disk and a computer. The AJA Io is another example of a non-DV FireWire device.
H
H
Standard definition
monitor
Audio
FireWire
Video
Computer
Amplified speakers
AJA lo
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