Blackmagicdesign ATEM Mini Installation And Operation Manual page 104

DSK parameters
Tie
Rate
Key
Auto
Fill Source
Key Source
Pre Multiplied Key
Clip
Gain
Invert Key
Mask
Switches the DSK TIE button for the respective keyer on or off.
The mix rate at which the downstream keyer transitions on or off.
Switches the respective DSK CUT button on or off.
Enables the respective DSK AUTO button to transition the keyer on air.
Selects the source to be keyed.
Selects the cut source which masks the fill source.
Identifies the key signal as a pre-multiplied key.
The clip level adjusts the threshold at which the key cuts its hole.
Decreasing the clip level reveals more of the background. If the
background video is completely black then the clip value is too high.
The gain adjustment electronically modifies the angle between on and
off thereby softening the edges of the key. Adjust the gain value until
the edge softness is desirable but the background video luminance, or
brightness, is not affected.
Inverts the key signal.
Allows you to mask out sections of the key. For example, if you need
to select only a specific section of a graphic, you can use the mask
setting to select only the area of the graphic you want to use. To return
the mask to the default settings, select 'reset mask' and press the set
button.
Keying using ATEM Mini 104