Pyro Industries API-1394PCI Uživatelský manuál stáhnout pdf (Strana 51)

CHAPTER 2: CAPTURING ■

planned, but it least you have an idea about what it will take to get the project

done right.

Here’s an example of what can go wrong: On a couple of occasions, I worked

with a director who had a film that was determined to be cut on video, and the final

product was to be video. About halfway through the edit, the director discussed the

possibility of finishing the project on the original film. If you set up a project as a video

project and do not use the film edge numbers as a reference, there is no way of match-

ing your cut back to the original camera negative (unless, of course, you have window

burned with the key numbers on the video). In cases such as these, you would have to

write out the edit list by hand. But jogging through two hours of film is not a fun thing

to do. The alternative is to reset to a film project (23.976 fps); the edge numbers can

then be entered.

On other occasions when the director determined that low resolution was ade-

quate for a cut, I have been asked to “create a DVD” of my work. Because we used

low resolution to begin with, the final DVD looks pretty bad. If the director had told

me that we were going to create a DVD, I would have captured the media in a higher

resolution. In this case, the solution was to batch capture the finished cut at a higher

resolution, taking up more drive space and wasting more time to create it.

Using a Deck for Capture

With Xpress Pro and Free DV, there is a variety of different sources that can be used

(see Figure 2.5). Even with Free DV, which accepts only FireWire sources, you can add

a transcoder, which converts conventional audio and video sources into a FireWire

stream. Let’s start by discussing some of the connections that you will be using.

Deck Connectors

Although Free DV and Xpress Pro utilize FireWire as their source, you can also use

additional sources with other types of connections if you use either the Mojo (with

Xpress Pro only) or a transcoder.

FireWire

FireWire, also known as IEEE 1394, is a standard for transporting data. Because it is

used on so many cameras and DV decks, it is often confused as being just a DV trans-

port. Although FireWire can transport DV data, it is not limited to doing only one

thing. It can send and receive data up to 400 mbps (megabits per second) As a result,

you can transport lossless quality video and DV50 using FireWire. It uses two types of

connectors (see Figure 2.6): a four-pin connector, which is normally connected to the

deck (this is also connected to the DV out port of the optional Mojo for Xpress Pro)

and a six-pin connector, which is connected to your computer.

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Pyro Industries API-1394PCI Uživatelský manuál Strana 51