User's Manual
For example if your ATEM is selected to run at 2160p59.94 then the multi view will output at
2160p29.97 when the multi view setting is selected to Ultra HD, or you can choose to output
1080i59.94, 1080p29.97 or 1080p59.94 when the multi view output is selected to regular HD.
Set Multi View video standard
For all other switcher models the multi view output is always HD even when running in standard
definition so you can see all your sources in higher resolution. When switching Ultra HD video
at 59.94 or 50 frames per second, the multi view will display HD video at 29.97 or 25 frames
per second respectively.
Setting the Down Converter Outputs
When running ATEM Production Studio 4K models in Ultra HD, the HD-SDI program output
always outputs down converted high definition 1080i video for connection to HD-SDI
equipment. High definition or standard definition video inputs are always output as HD or
SDvideo respectively.
ATEM 4 M/E Broadcast Studio 4K has 1 down converted program output that will
defaultto1080p29.97 when switching Ultra HD video at 2160p59.94, or 1080p25
whenswitching 2160p50.
When running the ATEM 1 M/E and 2 M/E production switchers in high definition, the HD signal
is permanently down converted to SD via SDI and composite video outputs for connection to
older devices. 720p50 and 1080i50 down converts to 625i50 PAL. 720p59.94 and 1080i59.94
down converts to 525i59.94 NTSC.
Down conversion provides the following aspect ratios:
Center Cut Crop left and right side making a 4:3 image.
Letterbox Scales the video down with black bars to top and bottom.
Anamorphic
Horizontal scale (squeeze) to make 16:9 image fit 4:3. Requires an anamorphic or 16:9
monitor or television to correct the aspect ratio.
Setting the down converter standard
Set 3G SDI Output Level
If you’re outputting HD video to equipment with 3G-SDI inputs, you may need to toggle
between level A and B 3G-SDI output standards to maintain compatibility with equipment that
can only accept level A or B 3G-SDI video. Level B is the default setting that works with most
equipment, but you can switch to Level A by clicking the ‘level A’ radio button.
Setting 3G-SDI Output Level
66Using ATEM Software Control