Grass Valley M-2100 - Manual (Page 75)

MMCP Installation/Operation Manual 2-51
Audio Controls and Operation
Cut Transition—Cut out Over only
Conditions:
■ No change in audio Main sources
■ Over currently on Program bus
■ No Over is on Preset bus
At the effective time of the transition cut (considering preroll, transition
hold and transition now), the old Program Over source begins to ratio
down to zero. This ratio transition occurs Over the FTU (fade to under)
interval. At the end of this interval, the Program bus Over source is
removed (its button lamp tallies low).
The audible result is the fading out of the Over source and the fading back
to full level of the Program main source over the FTU interval. The extin-
guishing of the Over source tally will be delayed by the FTU interval.
Cut Transition—Cut out Over and Change Main Source
Conditions:
■ Change in audio Main source
■ Over currently on Program bus
■ No Over is on Preset bus
Again this transition is upgraded to a fade-fade transition with a nominal
fade interval of 100 ms. Therefore, this transition will behave identically to
a fade-fade with an Over out.
At the effective time of the beginning of the first half of the transition (con-
sidering preroll, transition hold and transition now), the old Program main
source and Over begins a transition to silent by action of the main Program-
Preset mixer. There is no change is the old Program source ratio during this
fade.
At the effective time of the beginning of the second half of the transition
(considering transition hold, but normally immediately upon completion
of the first half), a fade from silent to the new main source is begun.
The audible result is a short fade to silent taking out the old Program main
source and its Over. The new source is then faded in.
Cut Transition—Cut to New Over only
Conditions:
■ Change in audio Main source
■ Over currently on Program bus
■ Over is on Preset bus