Down Stream Keyer; Hs-2850 And Cg Setup - Datavideo HS-2850 Instruction Manual

6.2 Down Stream Keyer

The HS-2850 has two Down Stream Keyers (DSK1, DSK2). This means it is able to take a key
source video input and replace the white or black parts of this image with the video from
another source. If the input video carries an alpha channel it is also possible to key in this
way too.
DSK Settings
Before trying to activate the DSK function it is best to understand how to set up or choose
the right options for your production well in advance of the production.
Keying on the Multi-view or Preview outputs.
Assigning an input to a DSK channel for keying
Using the lower DSK1 or DSK2 buttons, you can assign a selected video input to the chosen
DSK video layer.
1. First press and hold down the required DSK button on the lower row. The Preset row of
input sources will light.
2. While still holding down the DSK button, press to select the required input from the
Preset row.
3. The input will flash to confirm it is selected.
This selection will also be confirmed on the HDMI Multi-view, with a T1 or T2 label shown
next to the selected input image.
After successfully configuring the downstream keyer settings, press the ENTER Key in the
MENU area of the SE-2850 keyboard. Navigate to the DSK Settings option using the down
arrow key. The DSK menu options provided here are:
DSK Settings Titles 1 (DSK1)
Titles 2 (DSK2)

6.3 HS-2850 and CG Setup

The CG-200 Character Generator software allows the producer to create professional
overlays with a Windows laptop or Windows PC from which the CG-200 outputs a computer
generated video stream via an HDMI interface. This software works in perfect pair with the
HS-2850's built-in title overlay system (TC-200) if subtitles are a requirement in your
DSK Preset and DSK Program
When looking at the top right corner of the HS-2850 Control Panel /
Keyboard there are four DSK keys. These are labelled Program and
Preset.
The upper DSK1 and DSK2 keys relate to activating Down Stream
Keying on the Program outputs.
The lower DSK1 and DSK2 keys relate to activating Down Stream
Titles + a-CH mode (alpha channel mode)
Luma Key mode
Luma Key Level 0 (black) to 255 (white)
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