Calrec Apollo, Operator'S Manual

Page: 124 / 214

Routing Audio 124 APOLLO
Digital Broadcast Production Console
DOWNMIXES
Apollo has comprehensive downmix
facilities to make downmixing as
simple as possible while retaining
complex control where necessary.
Downmixes are applied to the metering
and monitoring systems, including APFL,
and all relevant paths in the system.
When a surround path, metering or
monitoring signal is routed to a stereo
or mono destination, a downmix must be
applied to take care of the increase in
level that will occur due to the summing of
surround components, and also to shape
the sound in the desired way.
Apollo allows a number of default
downmix configurations to be set up. One
of these downmix configurations can be
selected for use in a show. All downmixes
performed within that show will follow the
default settings selected, unless changes
are made to individual paths or buses
by the user. Apollo uses the monitor
panel, shown in Fig 1, to make these
adjustments.
Pressing the DOWNMIX button on
the monitor panel changes the faders
from controlling main or spill levels, to
allowing them to alter the downmix levels
for the assigned path. The downmix
configuration selected for the show is
applied to downmix faders automatically
for all surround paths. Changes to the
downmix faders for an individual path can
be made and apply only to that path.
The downmix faders available for a 5.1
path are:
• L/R
• C
• LFE
• Ls/Rs
• Lo/Ro
FIG 1 - DOWNMIX FADERS Note that there may be a different number
of faders for paths of different widths.
The LoRo fader defaults to being on the
B layer of the left-most downmix fader.
Bypassing the downmix faders
When routing a surround path or bus to a
stereo or mono bus, the downmix levels
set by the downmix faders are applied
automatically. To bypass the downmix
faders for a given bus, select the bus in
SENDS-ROUTES mode and press the
BYPASS DOWNMIX FADERS button.
For information on selecting a bus in
SENDS-ROUTES mode, please refer to
“Making a Route” on page 114 .
Pre-fader downmixes
Should a surround path or bus be sent to
a bus pre-fader, it may be necessary to
have the spill fader levels applied to make
the downmix the same as the post-fader
downmix. This is because the post-fader
downmix is processed after the spill
faders, and so adjustments to individual
legs on the spill faders will have an effect
on the resultant downmix.
To make the pre-fader send follow the spill
faders (but not the overall path fader) to
produce the correct downmix, select the
destination bus in SENDS-ROUTES mode
and press the FOLLOW SPILL FADER
LEVELS button. This button will only be
visible if the send or route is pre-fader.
Setting downmix defaults
Users with technician access can set
up five different downmix defaults (with
an additional default set up by Calrec).
One of these defaults can be selected by
operators to act as the default for their
show. To enable technician mode, please
see
“Technician Mode” on page 186 .