Sony MCS-8M User Manual

I-30

Composing Images with Keys

  Chapt

er

 3

  Bas

ic

 Ope

rat

ions

Perform the following between step 7 and 8 of the 
previous procedure.

1

Turn the V1 knob to select [Key Fill/Src Select], and 
turn the V3 knob to select [Split].

2

Press the PST/KEY cross-point button to be used for 
the key source while holding down the KEY bus 
delegation button.

This section describes how to perform “auto chroma key” 
where you specify a portion of the foreground video (e.g., 
a blue background color) and use it as a reference signal 
for creating the chroma key image through automatic 
adjustment.

c Advanced Settings).

Press the KEY bus delegation button.

Press the PGM cross-point button of the video for 
program output.

Press the PST/KEY cross-point button of the key 
material (i.e., the image to be superimposed on the 
program video output).

Press the KEY next transition selection button.

The selected image in its “key on” state is used for 
PVW output.

Press the MIX button or EFF button.

0 0 0 1

R a t e

30

S S

M o n

PGM

Key

4/27

S e l e c t

S o u r c e

Fill

Spl it

Bus

Key Transition
Key Type Select
Resizer

 

Key Fill/Src Select

V3

Source

Key source 
selection mode

Self, Auto, Split