Keying; Keyers Overview - Ross Master Control MC1-MK Operation Manual

Keying

Keying is the term used to describe when you insert (or electronically cut) portions of one screen into another, or
place titles over background images. Keys are made up of two basic components: an alpha (that cuts the hole in the
background video), and a fill (that fills the hole with different video). This chapter provides a summary of the
MC1-MK keying features.

Keyers Overview

MC1-MK includes up to four high quality 3G/HD/SD-SDI video keyers.
Key Alpha source, there are also four internal static/animation playout channels. This enables the keying of external
devices such as character generators, graphic systems and EAS devices into a program feed and/or keying with four
internal logo channels. If you have the 3G Video Mode enabled, only two keyers and two logo channels are
available.
The card offers full key control with shaped and unshaped keying, self key or auto key, with clip and gain control.
1) Keyers Tab
2) Logos Tab
1. Keyers Tab
Each keyer has a sub-tab that enables you to select video sources, key types, and adjust transparency, clip, and
gain. The MC1-MK supports Auto Select and Self keys. The External sub-tab enables you to specify the router
source that feeds input on the KEY VIDEO Input or KEY ALPHA Input used as the External source when
configuring keyers.
2. Logos Tab
Each logo channel has a sub-tab in the Logos tab that enables you to specify the media files the channel uses.
Refer to the section "Loading Media Files" on page 40 for details.
1. Only two keyers (Key 1, Key 2) are available when 3G Video Mode is enabled.
MC1-MK Operation Guide (v11.0)
Figure 4.1 Keyer Controls
3) Program Keyer Select Buttons
4) Preset Keyer Select Buttons
1
In addition to the external Key Video and
Keying • 19