Pyro Industries API-1394PCI Manual do Utilizador descarregar pdf (Página 258)

237

■ DIGITAL CUT

Although it looks like a direct entry box, the DV Offset is controlled through

your deck preference settings. If you do a digital cut, but the audio and video don’t

seem to be in sync, you’ll need to open your deck preferences and override the recom-

mended DV offset with a number of your choosing. The bad news about overriding

the recommended offset is that you have to determine the correct number of frames

through trial-and-error. The good news is that it should remain consistent, as long as

you use the exact same equipment. So after the settings are made, save them. An easy

way to determine the offset is to lay a sequence off to tape that consists of a few sec-

onds of filler, followed by a beep synchronized to a single frame of white or bars or

video, followed by more filler.

The rest of the Digital Cut tool should be familiar to you (we covered it in

Chapter 2). Be sure that the right deck and tape name are selected. If you are control-

ling the digital cut locally and doing a crash record, none of this is necessary. No marks

need to be in the marks register unless you are recording your digital cut at a specific

Mark In timecode. One slight difference is that there is no Mark Out button, because

the length of your sequence or marks on the sequence determines the outpoint, plus

any black filler you’ve added.

Digital Cut with Mojo

The Mojo accelerator allows a few more options when you create a digital cut. It can

work as a transcoder to Composite, Component, or S-Video analog decks. It can out-

put real-time effects. It can output uncompressed video.

The greatest advantage of a Mojo is the lack of rendering required when com-

pleting a digital cut. Although all the preparations should be completed as with a digital

cut without a Mojo, you do have the capability of playing back uncompressed video

and some real-time effects.

Once connected to your deck via FireWire from the Mojo, Xpress Pro can con-

trol the deck. The only significant difference that you will see on the Digital Cut tool

when used with Mojo is that you can enable Effects Safe mode. Effects Safe mode will

determine which effects need to be rendered before performing a digital cut. Enabling

Effects Safe mode will prevent video underruns or other playback issues. With Effects

Safe mode selected, click the Record button for the digital cut to begin. After render-

ing, the system will perform the digital cut.

Note: If you receive the error “No coincidence point found”it probably means that your deck,your tape,or

both are “write protected”or “record inhibited.”Pop or slide the record inhibit button on the tape or flip the

record inhibit switch on the deck and try again.

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Pyro Industries API-1394PCI Manual do Utilizador Página 258