Sony DVS-7300, User Manual

Page: 108 / 606

4-24
Chapter 4 Basic Operations for Image Creation
Using a 3.5-M/E system or a 3-M/E system equipped with a downstream
keyer, you can insert up to four keys into the final background output. The
following table identifies the final background output on each of these
systems.
This section describes the concept of downstream keying, and the basic
operations for carrying it out.
Overview
The DMK-7000 Digital Multi Keyer can incorporate a maximum of four
keyers (DSK 1, DSK 2, DSK 3, and DSK 4), and with either of the above
systems you can control these keyers as downstream keyers from the
downstream keyer control section of the control panel.
Note that in a 3.5-M/E system, you can also use the transition control section
of the PGM/PST bank to control downstream key transitions, but this section
describes only operations using the downstream keyer control section.
Available key types
You can use the following key types on the downstream keyers:
• Luminance key (see page 4-39)
• Linear key (see page 4-40)
• Clean key (see page 4-40)
• Color vector key (see page 4-71)
Basic Downstream Key Operations
System Final background output
3.5-M/E Video selected by the cross-point buttons in the PGM/PST bank
3-M/E The output of the final M/E bank (including both keys if inserted)