Inserting Titles (Keys); What Is A Key; Entering Titles Using Luminance Keys - Sony MVS-3000A System Startup Manual

Inserting Titles (Keys)

What is a Key?

You can overlay video containing a title or other material
occupying part of the screen (key) over the video displayed
on the whole screen (background). The component that
processes keys is called a keyer.
There are four keyers available on each of the M/E and
PGM/PST banks.
There are eight keyers available on the MVS-6530 PGM/
PST bank only (1 p. 37).
Key 4
Key 3
Key 2
Key 1
Background

Entering Titles using Luminance Keys

You can insert a title using a key.
The following describes the M/E-1 bank, as an example.
1
Select the title image.
a In the 1st row of the cross-point control block, press
the [KEY1] button (button assigned to key 1),
turning it on.
b In the 2nd row, select the title image (key fill).
KEY1 button
Cross-point control block
Title image
A key is comprised by a signal that describes how the
background is cut out (key source) and the video signal
that is inserted into that space (key fill).
Luminance keys and linear keys
These are keys that cut backgrounds using key sources
generated by differences in luminance (for example, black
and white).
Keys 1 to 4
Other keys
You can change the
Chroma keys (keys that use differences in color), color
order of keys (key
priority). vector keys (keys that use differences in color and
brightness), and pattern keys (keys that use wipe patterns)
are available.
2
Select the background.
a In the background A row, press a cross-point button
1st row
2nd row
to select a background.
Background
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Inserting Titles (Keys)