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Background mix, Background mix -3 – Grass Valley 1200 Operation Manual User Manual

Page 165

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4-3

Transitions

Background Mix

A mix (Figure 4-2) is a dissolve from one picture to another. You
can mix between Program and Preset bus sources as follows:

1.

Select a PST bus

[crosspoint]

.

2.

Select the

[Bkgd]

Transition button. The PST bus scene will

appear on the preview monitor (optional).

3.

Select the

[Mix]

Transition button.

4.

Move the

lever arm

from one limit to the other. As the lever

arm moves, the Preset bus scene will mix on air, the Program
scene will mix off, and the Program and Preset crosspoint
selections will flip-flop (swap) at the end of the mix.

As an alternative to using the lever arm, press

[Auto Trans]

to do an automatic mix transition. To pause an auto transition
in progress, press

[Auto Trans]

again. To resume the

transition, press it a third time. You can also start a transition
with the lever arm and finish it with an auto transition or vice
versa.

Ending Video

Mix in Progress

Starting Video