Mixer Events - Videonics AB-1 Edit Suite User Manual

Mixer Events

Use MIXER Events only if you have a third-party mixer or switcher attached to
Edit Suite's GPI-M port.
Mixer Events are used to cut from one source to another and to create A/B Rolls
between scenes from two play VCRs. In an A/B Roll, instead of cutting from one
source to the next, a fade, wipe, dissolve or other special effect is used. During
the transition between sources, both sources are played, displayed and recorded
simultaneously.
To specify a cut to a scene from a new source, add a MIXER Event with a
transition duration (TRANS DUR) of 00 between the two Scene Events. To
specify an A/B Roll, add a MIXER Event between two Scene Events, and include
the length of time it takes for the transition to run in the TRANS DUR field.
002
A
002/003
MIXER
003
B
Cut to New Source
The arrows on events 002 and 003 indicate that the events are part of a logical
group. In this case, the group is the scene from event 002, the MIXER Event, and
the scene from event 003.
In the MIXER Event above, the event number—002/003—reflects the event
numbers of both sources in the Cut or A/B Roll. TRANS DUR is the length of
time—in hours, minutes, seconds, and frames—that the transition will run. Edit
Suite needs this information so it can determine the correct time to start playing
the A/B Roll's "B" source and the correct time to send the transition command
(GPI pulse) to the mixer/switcher.
To determine the transition duration, play the transition on your mixer at the
speed you want to use and measure the length of time it takes to complete. If you
have a window dub or a recording of a clock or stopwatch, you can record the
transition and then subtract the end time from the start time. (Hint: Create a table
of durations for the various transition speeds used by your mixer.)
An A/B Roll will be timed so that the midpoint of the transition is the OUT point
for the "A" source and the IN point for the "B" source. You can fine-tune the
starting time for the "B" source in an A/B Roll by changing the IN OFFSET
IN 00:07:05.12
OUT 00:07:17.00
TRANS DUR
00:00:00.00
IN 00:22:22.01
OUT 00:22:45.10
002 IN 00:07:05.12
A OUT 00:07:17.00
002/003 TRANS DUR
MIXER 00:00:03.20
003 IN 00:22:22.01
B OUT 00:22:45.10
A/B Roll to New Source