JVC KM-H2500U User Manual
20
Dedicated Key Transitions
If an immediate transition is required or an
unexpected transition needs to be performed, the
switcher allows for a dedicated key transition.
Dedicated key transition buttons for this purpose are
located to the right of the Fader. Only dissolve
transitions can be performed with the dedicated key
transition buttons.
unexpected transition needs to be performed, the
switcher allows for a dedicated key transition.
Dedicated key transition buttons for this purpose are
located to the right of the Fader. Only dissolve
transitions can be performed with the dedicated key
transition buttons.
To perform a dedicated key transition:
1.
Ensure that a key, key-type, and source are
selected.
selected.
2.
Take the desired key on or off-air by performing
one of the following:
one of the following:
• Press KEY 1 TRANS to transition Key 1.
• Press KEY 2 TRANS to transition Key 2.
• Press KEY 3 TRANS to transition Key 3
• Press KEY 2 TRANS to transition Key 2.
• Press KEY 3 TRANS to transition Key 3
(KM-H3000 only).
Note:
• When a key is on-air, the appropriate dedicated
key transition button glows red.
For More Information on...
• selecting Keys, refer to the section “Selecting
• selecting Keys, refer to the section “Selecting
Setting the Transition Rate for Dedicated
Key Transitions
Key Transitions
You can set the transition rate for the dedicated key
transition buttons independently of the other switcher
transition rates.
transition buttons independently of the other switcher
transition rates.
To change the transition rate for dedicated key
transitions:
transitions:
1.
Press DISS.
2.
Press NEXT.
3.
Use the Key 1-3 (1-2 on KM-H2500) knobs to
change the transition rate for the specified key.
change the transition rate for the specified key.
Note:
• If the transition rate is set to CUT and a transition is
in progress, pressing a dedicated key transition
button immediately cuts the associated key to the
previous state (either on or off-air). The rest of the
transition proceeds.
button immediately cuts the associated key to the
previous state (either on or off-air). The rest of the
transition proceeds.
For More Information on...
• the Next Transition area behavior, refer to the
• the Next Transition area behavior, refer to the
Chroma Key
The Chroma Key masks a specified color allowing
you to quickly extract a foreground subject from a
controlled-color background. The switcher can mask
the following colors: blue, green, red, cyan, magenta,
and yellow. The default color is blue.
you to quickly extract a foreground subject from a
controlled-color background. The switcher can mask
the following colors: blue, green, red, cyan, magenta,
and yellow. The default color is blue.
To create a Chroma Key:
1.
Select the key you wish to use.
2.
If you are not using Key 1, press CHR KEY to set
the selected Key to a Chroma Key.
the selected Key to a Chroma Key.
3.
If you have already assigned a Chroma Key to
one of the other keyers and the Chroma Key
share mode is set to FLOAT or ASK, you are
asked whether you want to steal the Chroma Key
resource to use on the new key. You can choose
from the following:
one of the other keyers and the Chroma Key
share mode is set to FLOAT or ASK, you are
asked whether you want to steal the Chroma Key
resource to use on the new key. You can choose
from the following:
• Press the Confrm knob to steal the Chroma
Key resource for the new key. The old Chroma
Key is taken off-air and converted to an
Auto-Select Key.
Key is taken off-air and converted to an
Auto-Select Key.
• Press the Cancel knob to cancel the new
Chroma Key and leave the resource with the
key it is currently assigned to.
key it is currently assigned to.
4.
Select the desired source on the Key/Aux bus.
5.
Use the Color knob to select the color to make
transparent. You can choose from the following:
transparent. You can choose from the following:
• Blue (default)
• Cyan
• Green
• Yellow
• Red
• Cyan
• Green
• Yellow
• Red
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