Roland LVS-800 用户手册
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Using the Downstream Keyer (DSK)
A Downstream Keyer (DSK) allows you to superimpose text or graphics over background video. Since the text of
graphics appear “downstream“ from your A/B mix, you can freely switch or mix various video sources behind your
“keyed“ text or graphics.
Generally, elements such as logos and text are composited using DSK. This feature makes it possible to switch the
background video or actuate picture-in-picture while displaying same logos or text in the foreground.
graphics appear “downstream“ from your A/B mix, you can freely switch or mix various video sources behind your
“keyed“ text or graphics.
Generally, elements such as logos and text are composited using DSK. This feature makes it possible to switch the
background video or actuate picture-in-picture while displaying same logos or text in the foreground.
The results of DSK composition are output only via the PGM OUT connectors. No DSK output comes from the A/B MIX OUT
connectors.
connectors.
fig.DSK.eps
What’s a Downstream Keyer (DSK)?
Upstream
Downstream