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Effects Loop Processing
STEP 5:
STEP 6:
STEP 7:
STEP 8:
STEP 9:
5-82
Engineering Setup
NOTE: Because the input timing window for an entire
Input module is changed, the DVE video and key inputs
must be connected to the same Input module for effects
looping to work properly.
This completes the connection and setup for a single external
DVE (for two external DVEs, see step 12). To check for proper
operation, set up a key on M/E Keyer 1. See Section 4 –
Keying, in the 8150 Operations Manual, for information on
setting up a key.
After setting up the key, bring up the Aux Buses submenu in
the Miscellaneous menu. Press the Effects Loop Inputs
softkey, then turn the DVE Select pushknob to select EXT 1.
(To use the internal DVE, if installed, you can select Internal
to use that DVE.)
Use the Loop Select pushknob to select M/E Key 1, then press
the Press to Assign pushknob to activate the loop. (The Press
to Assign display reads DVE 1 – M/E Key 1 to indicate that
a loop is active; if you are using the internal DVE, the display
reads DVE I – M/E Key 1.) The processed fill and key signals
from Keyer 1 are now routed via the DVE to the keyer. (Make
sure that the DVE key channel is turned on.) You can now
reposition and otherwise transform the key over the
background, and still have the other two keyers available.
You can perform an Effects Loop for any of the three keyers,
one at a time, by performing a key on Keyer 1, Keyer 2, or the
DSK, and selecting M/E Key 1, M/E Key 2, or DSK
(respectively) with the Loop Select pushknob, followed by
pressing the Press to Assign pushknob to activate the loop.
Set Loop Select back to Off and press Press to Assign,
changing its display to DVE Loop Off. Turn KEY 1 on and
select a background for it on the Background A bus.
Select M/E Bgnd with the Loop Select pushknob and press
Press to Assign. (Make sure the DVE key channel is turned
off.) Press the BGND transition select button and perform a
partial transition of Background A and B. The transition, with
Keyer 1 composited over it, should appear "inside" the DVE.
The DVE is visible because it is returning via Keyer 2, which
is forced on; you cannot turn Keyer 2 off in this mode. If you
"squeeze" the DVE image size down, you can see it keyed over
8150 Technical Guide
9100-0212-04 - May 2000
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