User's Manual
For example, your ATEM 4 M/E Broadcast Studio 4K could have the maximum 64 still graphics
and 2 clips loaded that will be used on your live production and then you can assign each of
the media players to various stills as you work. As you take a graphic off air, you can change the
media player graphic to the next graphic you want, and then you can put that media player back
on air with the new graphic. ATEM Constellation 8K holds clips up to 100 frames long and has
onemedia player in 8K mode. In HD and 4K Ultra HD mode it has 4 media players and the
media pool is shared between media players. For more information about clip lengths for
different models and video formats, see ‘Clip Length Table’.
When a still or clip is loaded into the media pool, the alpha channel is loaded automatically if
one is included in the image. When a still or clip is loaded into a media player, the output of the
media player will include both key and fill outputs. If you select a media player as a key source,
for example Media Player 1, both the fill and the key are automatically selected so you don’t
have to select them separately. However the key can still be routed separately so you can use
a different key source if you wish.
Audio Mixer
The Audio tab in ATEM Software Control contains an audio mixer interface which becomes
active when controlling any ATEM switcher.
ATEM switchers include a built-in audio mixer that lets you use the embedded HDMI and
SDIaudio from your cameras, media servers and other inputs without the need for an external
audio mixer. This is perfect when using an ATEM switcher on location or in small spaces within
modern OB vehicles as you don’t have to find room for an external audio mixer. The audio is
mixed in the Audio tab of ATEM Software Control and output via the SDI and HDMI
program outputs.
Your ATEM switcher features built in XLR and RCA inputs for mixing external audio. Mixed audio
can also be output via the XLR outputs and the audio mixer contains independent controls for
setting the audio level and also for selecting solo audio monitoring.
All ATEM production and broadcast studio switchers, except for ATEM Production Studio 4K,
mix audio from the switcher’s built in media players. ATEM Production Studio 4K does not mix
audio from the media players because this model supports still frames only in the media pool
and does not support motion clips.
If you prefer to use an external audio mixer, it’s easy to disable the audio for all inputs and you
only need to leave the external audio active in the audio mixer interface. More information on
how to use the audio mixer is included in the next sections.
43Using ATEM Software Control