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Using ATEM Software Control
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ATEM switchers include a built-in audio mixer that lets you use the embedded HDMI and SDI audio 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.
All of the ATEM Production Studio 4K range feature 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. On the ATEM Television Studio, the
audio mixer also mixes external audio from the AES/EBU input.
ATEM 1 M/E and 2 M/E Production Switchers include a breakout cable for mixing external audio via XLR
inputs and outputs. The audio mixer contains independent controls for setting the audio level and for
selecting solo audio monitoring.
ATEM 1 M/E and 2 M/E Production Switchers and ATEM 1 M/E and 2 M/E Production Studio 4K models
also mix audio from the switcher's built in media players.
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.
Media Manager
The media manager allows you to upload graphics and image sequences to the media pool in the ATEM
switcher. Each ATEM switcher model has memory for graphics that's called the media pool. This memory
varies in size between different ATEM models, and holds images with alpha channel that can be assigned
to a media player for use in the production. ATEM Production Studio 4K and Television Studio holds 20 still
graphics with alpha channel while higher end ATEM models hold 32 still graphics and 2 video clips.
So, for example, you could have the maximum 32 still graphics and 2 clips loaded that will be used on
your live production and then assign each of the 2 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.
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.
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