Vision Operator’s Manual (v12.0 MD) Transitions • Ops 5–7
Transition Types
The Vision switcher can perform 4 different types of transitions. These include Cuts, Dissolves,
Wipes, and Squeeze & Tease Wipes. When a transition is performed, the switcher uses the
transition type to replace the on-air video source with the one you are transitioning to.
For More Information...
• on performing a transition, refer to the section “Performing Transitions” on page Ops
5-12.
• on performing a Fade to Black, refer to the section “Fade to Black” on page Ops 4-35.
Cut
A Cut is an instantaneous transition between video sources. Unlike all the other transition types,
there are no intermediate steps between the video source that is on-air, and the video source you
are transitioning to (Figure 5.8).
Figure 5.8 Cut Transition — Program Output
Dissolve
A Dissolve is a gradual transition between video sources. For a Background transition, the video
signal on the Background bus and the video signal on the Preset bus are mixed together until the
Preset bus video signal completely replaces the Background bus video signal (Figure 5.9).
During the transition, both the Background bus and the Preset bus are on-air. Only after the
transition has completed do the crosspoint selection flip-flop between the buses.
Figure 5.9 Dissolve Transition — Program Output
For Key transitions, the key is faded on or off-air with the transition, and the background remains
untouched.
The duration of a dissolve transition depends on either the transition rate for the MLE, or the rate
at which the fader is moved.
For More Information...
• on setting up and performing a WhiteFlash dissolve, refer to the section “WhiteFlash”
on page Ops 5-19.
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