User manual

Film stems are made up of Tracks that have had suitable pan designators applied to them using Desk Edit or
Surround Manager. The pan designator means that when a Channel is routed to a particular Track then the
Track only receives the relevant portion of the signal that is panned to the speaker position indicated by the pan
designator.
The Simplified Surround Monitoring diagram shows how this works:
Stem A consists of the first four Tracks in the current Desk Setup, and the LCRS Pan Macro has been used to
designate the Tracks appropriately.
Channel 1 is routed to all the Tracks in Stem A.
If Channel 1 is panned fully to the left and front, then all of the signal will be sent to Track 1. This is because
Track 1 is designated in the panning position of Front Left. If the FB pan control (or a Joystick) is used to
'move' the signal back from this position then the signal will slowly diminish on Front Left (Track 1) and
gradually increase on Mono Surround (Track 4).
The Tracks must then be routed to the correct Film paths in the Surround Monitoring Panel. The Film paths are
automatically assigned to speaker positions according to the number of Film paths selected in the current Desk
Setup.
In the example in the Simplified Surround Monitoring diagram there are 4 Film paths that have been
automatically assigned to the speaker keys that are used for LCRS monitoring (L, C, R and SL).
It is also possible to use Tracks as inputs with pan controls. Tracks used in this way are then routed to Tracks that
belong to film stems.
-
The routing software prevents any feedback loops from occurring.
Surround Sound Panel How the Surround Sound system works
Issue 4 Page 9:2
Channel 1
Track 1 (L)
Track 2 (C)
Track 3 (R)
Track 4 (S)
Stem A
Surround
Panning
Stem setup on the
Stem Control Panel
with Tracks designated
for the correct panning
destinations
Film 1 (L)
Film 2 (C)
Film 3 (R)
Film 4 (S)
NB The LS speaker key is
used as the destination for
rear (mono) surround.
Speaker selection
on the
Surround Monitoring Panel
R
LS
RS
SW
L
C
EX1
EX2
Analogue output
s
to speakers
SIMPLIFIED SURROUND MONITORING
5.1 Format Surround Sound Example
A 5.1 Format Surround Sound setup on Stem A is used as an example in this chapter
(it is a separate example from the LCRS illustrations). This is a very simple setup for
illustration purposes only.
This format is known as 5.1 because there are five surround destinations (Front Left,
Front Centre, Front Right, Rear Surround Left and Rear Surround Right) plus the
sub-woofer.
The setup will be as follows:
•
5.1 Format Surround Sound using FL, FC, FR, SL, SR and SW (sub-woofer).
•
Tracks 1 to 6 will form Stem A.
•
Channel 10 as a stereo input from 1lin 1AB.
•
Channels 11 and 12 as mono inputs 1lin 2A and 1lin 2B.
•
Channels are on layer A, Tracks are on layer B and Film Mons are on
layer D.
All the parts of this example refer to this setup and the steps towards obtaining it. It is
assumed an appropriate Desk Setup with enough Channel, Track (bus) and Film
paths has been loaded. It is also assumed that the Films are patched to the correct
outputs for the speakers (the particular outputs used for the speakers will be different
from one Logic MMC to another).