User Manual

Table Of Contents
The audio mixer displays tally lights for any audio sources that are currently on air or when AFV is selected, as
well as audio level, audio balance and buttons for selecting which audio should be used
Below each audio source is an audio level meter, a fader for setting the maximum audio level,
and a knob for setting the left/right audio channel balance. The master fader on the right side of
the audio mixer is used to set the gain on the audio level on the USB webcam and SDI program
output and has its own audio level meter.
The buttons below each audio level meter determine whether audio is always available for
mixing or only when the source is on air.
On ATEM SDI Extreme ISO you can enable the solo feature by clicking the headphone icon.
Selecting solo exclusively outputs that single audio source to the headphone output so you can
listen clearly to any single input when required.
Tally
Any source whose audio is on air is lit with a red tally light in the software. In the example on
this page, camera 3 and camera 4 are lit because their audio is set to be always on. The tally
light will be illuminated dull yellow when AFV is selected and the channel’s associated camera
is off air. This also applies to the master fader tally light when the master fader AFV button is
selected. When FTB is activated, the master fader tally light will blink red.
Audio Level
Drag the audio level fader to set the gain on the audio level for each camera and audio source.
The numbers under each audio level meter show the maximum audio level set by the fader.
The numbers above the audio meter show the peak audio level reached by the audio source.
Agreen number represents low to medium audio levels.
If the audio meter is regularly showing red, and the red number above it is not changing, then
you should reduce the audio level to avoid audio distortion. After adjusting the audio level, you
may wish to reset the red number by clicking on it once. Observe the new number to make sure
it changes for a while and does not immediately shoot up and become stuck on a red number. If
it does, you may need to reduce the audio level even further.
52ATEM Software Control