Calrec Apollo, Operator'S Manual

Page: 142 / 214

Monitoring 142 APOLLO
Digital Broadcast Production Console
AFL, PFL AND OUTPUT LISTEN
Apollo consoles have a
comprehensive multi-user AFL, PFL
and Output Listen system.
AFL
Selecting an AFL - ‘After Fader Listen’,
replaces the output of the control room
monitor with the post fader audio of the
path being AFLd. AFL provides a ‘non-
destructive solo’. Only the control room
monitor output is affected, no paths are
cut, and mixes to all other buses and
outputs are unaffected, allowing users
to quality-check selected paths whilst
maintaining all mixes.
Whilst in AFL mode, the control room
monitor selection display will indicate as
AFL. When all AFLs are switched off,
or globally cancelled, the monitoring will
revert to outputting its previously selected
source.
PFL
Selecting a PFL - ‘Pre Fader Listen’
sends the associated feed, by default, to
a dedicated PFL/RTB LS output (RTB
is ‘Reverse Talkback’ which allows for
signals to be mixed with PFL for listening
on the PFL/RTB output e.g for use with
producer / director hot-mics).
Multiple paths can be PFLd or AFLd at
the same time, creating a summed mix of
pre or post fader path solos.
Output Listen (OPL)
Mains, Tracks, Auxs and Direct Outputs
all have an OUTPUT LISTEN option. Like
AFL, this provides a non-destructive solo,
but Output Listen takes the feed after the
addition of output delay, directly before the
feed leaves the console.
Access from faders
When a path is attached to a fader, AFL
and PFL can be accessed using the AFL
and PFL buttons. Both are either latching
if tapped briefly, or momentary if held.
By default, PFL is automatically cancelled
when a fader is opened e.g if a fader
reaches
∞
whilst PFL is activated, PFL will
be deactivated when the fader reaches
FIG 1 - FADER AFL & PFL CONTROLS
FIG 2 - ACCESS AFL AND OUTPUT LISTEN FOR OUTPUT BUSES
FIG 3 - APFL INDICATOR/CANCEL BUTTON
ON BROADCAST FACILITIES PANEL
-90dB. This feature can be disabled by
turning off the OPEN FADER CANCELS
PFL button within the TOOLS>MISC
menu.
PFL can also be activated using the fader
overpress feature: Move the fader down
to its lowest position, then push it down
past the normal backstop position and
PFL activates for that fader. See Fig 1.
This is a momentary setting so as soon as
you release the fader, PFL is deactivated.
If you wish to disable this feature, navigate
to
>Show Settings>General Settings
from the left hand button menu and click
DISABLE for the PFL overpress option.
Access bus AFL, PFL and OPL
When in Outputs mode, any bus can
be brought into focus in the wild assign
row button cells by pushing down on the
output’s rotary control. Once an output is
in focus options appear in the wild assign
row button cells for activating PFL and
AFL (or OutPut Listen) for the currently
assigned path. See Fig 2.
Access AFL in Contribution Mode
When in Contribution mode any Auxiliary,
Track or Group bus can be AFLd by
switching ON on the AFL Selected Aux,
Track and/or Group slider and pressing
the required Bus on the screen. Note that
when another bus is selected the previous
bus AFL is turned off. When used in
conjunction with the ‘AUX SEND LEVELS’
option the user can listen to the bus whilst
adjusting the levels being sent to it. See
the Contribution Mode section for details.