Accom APR Attache, Руководство пользователя

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Accom APR
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98 User Guide
❏
F1 Record Mode
This softkey toggles between four possible recording modes:
Normal; PreRead; Program Delay (PGM Delay); and Confidence.
When
is pressed, the recording mode is selected and the
red lamps on the Attaché control panel toggle in unison, to reflect
the current recording mode. Refer to the following descriptions
for softkeys
and in this menu for more
information. Also refer to the Record Mode button in the Attaché Control Panel
description of this chapter.
Toggle between the four following choices:
Â
Pre-Read
Performing a record operation from either the Attaché
control panel or from an external editing system will
first play video material off disk, and then immediately
record the incoming video onto the same disk location.
This feature is most useful when you’re using an
external keying device, with the Attaché supplying the
background video. In this arrangement, video output
from Attaché is played into the keyer, a new element is
“keyed” over the Attaché playback, and the composited
result is then fed back into the Attaché for recording
again. This is a typical “layering” or “compositing”
operation, as illustrated in Figure 2.29.
A t t a c h é
D I G I T A L D I S K R E C O R D E R
A t t a c h é
P r e - R e a d R e c o r d e r
V i d e o K e y e r
F o r e g r o u n d V i d e o
F o r e g r o u n d K e y
B a c k g r o u n d V i d e o
C o m p o s i t e d V i d e o
C h a r a c t e r
G e n e r a t o r
V i d e o + K e y S o u r c e
( P r e R e a d " P l a y b a c k " )
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