Roland VR-6HD Direct Streaming AV Mixer - Manual (Page 39)

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Video Composition Operations
Compositing a Still Image with Alpha Channel
Uses alpha channels (areas which contain transparency data) to cut out
still images and place them against different background video as a
composite.
Compositing using DSK
1 . Press the PANEL [SETUP] button.
2 . Touch <DSK>.
The DSK setup screen appears.
3 . Touch the setup screen to make the following settings.
Parameter Explanation
MODE ALPHA KEY
DSK SOURCE Specifies the still image with alpha channel.
4 . Touch <DSK SOURCE> to select a DSK video source.
5 . Press the DSK [PVW] button to turn on the preview output
(lit).
A preview of the composition results is displayed in the PVW section
of the multi-view.
At this stage, the final output has not yet been changed.
6 . Touch the setup screen to adjust the intensity of the effect.
Parameter Explanation
MIX LEVEL Adjusts the key’s overall density (output level).
TIME
Adjusts the fade-in/out time for the DSK video
source.
* For details on the parameter, refer to “4: PinP/DSK” (p. 123).
7 . Press the DSK [PGM] button to turn on DSK compositing (lit).
The composition results is sent to final output.
8 . To turn off DSK compositing, press the DSK [PGM] button
once again.
Turning DSK/PinP composition on/off in tandem
with video transitions
You can make DSK/PinP composition turn on/off in tandem with the
video transitions.
1 . After setting “PANEL OPERATION” to “PGM/PST” from the
[MENU] button
Ó
“SYSTEM”
Ó
, set “EFFECTS TRANSITION
SYNC” to “ON”.
2 . After step 5, use the [AUTO] and [CUT] buttons to switch the
video.
DSK composition turns on, and the composited result that is
previewed is sent to final output.
Alpha channel
Background video Still image