Ross SYNERGY 4000DR-003, Operation Manual, Page: 26 / 332

1–10 • Introduction Synergy Series Operation Guide (v18)
Chroma Keying
Chroma keying is available on every keyer in each switcher — including the downstream keyers. Each
high quality chroma keyer features internal 4:4:4 chroma channel interpolation from any of the 4:2:2
inputs.
• The Synergy 2 (with one MLE plus Program/Preset) is capable of putting up to four
different chroma keys on air simultaneously.
• The Synergy 3 (with two MLEs plus Program/Preset) can display up to six different
chroma keys simultaneously.
• The Synergy 4 (with three MLEs plus Program/Preset) can display up to eight different
chroma keys simultaneously.
Using the control panel, you can directly adjust the Chroma Key’s clip, gain, hue, hue reject and
chroma suppress. Using the menu system, you can control additional chroma suppression, natural
shadow insertion and shadow transparency. If your system has the Preview Overlay Option board
installed, you also have access to the Auto Chroma Key feature, which allows you to quickly obtain
the best automatic chroma key for a selected color.
To simplify fast-paced live operation, the advanced menu system controls can be disabled. This allows
you to quickly set up high quality keys using a minimum number of dedicated knobs and buttons. A
“chroma key memory” button is also available on the panel that instantly recalls a previously stored
chroma key setup.
Chroma key shadows can either be extracted from the source image or simulated using the optional
switcher border generators.
Untimed Aux Buses
Twelve untimed Aux Buses are standard, each of which can be used to route video to monitors, DVE
channels, still stores, tape machines, technical areas, etc. If any destination requires signals with stable
timing (regardless of the source), the
Timed Aux Bus option can be used which effectively converts
an untimed Aux Bus output to a timed output. The total number of Aux Bus outputs remains fixed at
12.
The following signals are available on an Aux Bus:
• Black plus all primary inputs
• DVE SEND (to integrate external DVE effects into switcher transitions)
• Clean Feed
• ( Synergy 2 only) MLE 1 and MLE 2 program outputs
• ( Synergy 3 only) MLE 1, MLE 2 and MLE 3 program outputs
• ( Synergy 4 only) MLE 1, MLE 2, MLE 3, and MLE 4 program outputs