Grass Valley M-2100 - Manual (Page 37)

MMCP Installation/Operation Manual 2-13
Transition Controls and Operation
From left to right, the Transition Type buttons select:
■ Take — provides a clean, abrupt switch from Preset to Program. Not
affected by transition rate selection.
■ Fade/Fade — causes the current on-air source to fade down to transition
matte/silent, at which point, the Preset source will fade up (to on-air)
from transition matte/silent.
■ Take/Fade — causes the current on-air source to go abruptly to transition
matte/silent, at which point, the Preset source fades up (to on-air) from
transition matte/silent.
■ Mix — causes the current on-air source to dissolve to the new source
selected on the Preset bus.
■ Fade/Take — causes the current on-air source to fade down to transition
matte/silent, at which point, the Preset source switches cleanly and
abruptly to on-air.
Transition Rates
There is a Transition rate associated with each transition type. When a tran-
sition type is selected, the rate in effect when that transition type was last
used will be recalled. A
Take transition has no rate associated with it.
The transition rate applies the next time the PreRoll Transition button is
pressed, and is defined as the interval from the time the on-air video begins
to be modified to the time the preset audio and video is on-air at full gain.
Transition Rate buttons ( Figure 2-5 on page 2-12 ) are labeled Slow , Medium , and
Fast .
The transition rates are set at the factory to the default values below:
■ Slow — default is 2.0 seconds
■ Medium — default is 1.0 second
■ Fast — default is 0.5 second
Transitions rates are set in the Transition Rates section of the MCP form in the
M–2100 Configuration Manager. You may enter the desired transition rate
for each
Transition Rate button.
Hot Switching (Hot Program Cuts)
A hot cut (also called hot punching) is a method used to select a source
directly on the Program bus. A hot cut always initiates a
Take transition. If
the selected video source is not present, the LOS (Loss Of Signal) Matte is
placed on-air. When LOS Matte is active, a continuous high/low tally
flashing occurs on the active
PGM button.