Calrec Apollo, Operator'S Manual

Page: 92 / 214

Processing Audio 92 APOLLO
Digital Broadcast Production Console
ATTACK and RELEASE affect how the
Automixer module reacts to all assigned
paths. These controls are used for
‘smoothing’ out incoming signals, faster
attack and release times lead to a faster
reacting but therefore more erratic
automixer, whereas, slower attack and
release times lead to a slower reacting but
smoother effect.
Individual paths can be placed in and
taken out of the assigned Automixer by
enabling and disabling the corresponding
IN button.
Each Automixer can be disabled and
enabled using the DISABLE button in the
control cell to the right of the Automixer
Attack and Release settings. See Fig 2
for automixer controls.
Weight and levels
The Automix weight control allows the
emphasis to be set for each input, the
higher the weight of an input relative
to the others, the higher the signal that
passes from that input, e.g to give more
emphasis to a presenter over guests when
they are talking at the same time.
As an example, if only one fader within
an automixer group has audio content,
no gain reduction is applied to that input
and its automix meter will display full
(0dB). If only two faders have audio, and
the audio is at the same level (e.g tone
for test purposes), 6dB of gain reduction
is applied to each, maintaining the same
overall mix level when the signals are
routed to the same bus. If one of the two
paths is set to have a 10dB higher weight
than the other, the same overall level is still
passed when they are mixed, however the
higher weighted path will only be reduced
by 2dB, whilst the lower weighted one will
be reduced by 12dB. Note, these values
are given only as an example that can be
clearly demonstrated on a console using
tone.
FIG 2 - AUTOMIXER CONTROLS ON THE PROCESSING-DYN2 PANEL LAYOUT
FIG 3 - UPSTAND METERS
• The meters above show an example of 2 mono channels under
automix control. Both channels are fed with identical input audio
and are routed to Main 1.