Pyro Industries API-1394PCI Instrukcja Użytkownika Pobierz pdf (Strona 251)

230

CHAPTER 6: IMPORTING, EXPORTING, AND DIGITAL CUT ■

For example, if you start bars at 00:58:30:00, you could start the timecode on

your tape to 00:58:20:00 to allow the tape to preroll before the edit point. That way,

you could find elements more easily if there are any changes to be made to the show.

This brings me to another advantage of the insert method. If you decide to change a

single shot after recording your digital cut, you can do another insert digital cut of the

changed shot in the sequence. This method avoids having to perform a digital cut of

the entire piece all over again.

Assemble Edit

In an assemble edit, the deck goes into a recording mode and adds new signal and time-

code as it goes. The assemble edit is “invisible,” just like it is in insert edit mode, but

the deck again has to be able to do an assemble edit. The difference between assemble

and insert edit is that with assemble editing, the tape needs to be blacked and coded

only up to the starting timecode. From the point of the digital cut, assemble editing

creates new timecode, video, and control track. In the case of assemble editing, the

control track continues recording where it left off previously. As a result, an assemble

edit looks smooth, but actually contains a new sync recording.

To determine whether your deck supports this mode, go to the deck configuration

settings and look at the description of your deck. In the deck settings window, there is

a space for notes. Usually, Avid will describe compatibility with assemble editing, time-

code accuracy, and other issues that affect both input and output from your deck.

To use assemble editing, it must be enabled in your deck preferences first. When

you open your deck preferences (from the settings tab in your Project window), select

Allow Assemble Edit for Digital Cut.

So, which decks and cameras support these two modes? The best way to find

out is to look at the Avid website,

www.avid.com. There are so many decks and cameras

out on the market that it would be impossible to list all of the supported decks in this

book. Some decks are partially supported—that is, they may be able to do insert edits

but not assemble edits—and others are fully supported.

FireWire (IEEE 1394) protocol is not always frame-accurate. There is a lot of

dependency on the deck, the transcoder (if necessary), the FireWire card, and the soft-

ware. As a result, if you are controlling your deck by FireWire, assemble and (some-

times) insert digital cuts are not supported, because to make frame-accurate edits, Free

DV/Xpress Pro needs a recorder that can make frame-accurate edits! If you use RS-422

control of your deck, you may have frame-accurate remote control of your deck, but

again, the deck must be able to make insert or assemble edits.

Crash Recording

Many decks are configured only for hard or “crash” recording, which is the third

method of making a digital cut. Crash recording is simple: Hit the record button on

4440c06.qxd 11/6/05 9:39 AM Page 230

1 2 ... 246 247 248 249 250 251 252 253 254 255 256 ... 370 371

Brak uwag

Pyro Industries API-1394PCI Instrukcja Użytkownika Strona 251