7.0 Surround Program Bus, Master Faders, Signal Flow, and Patch Points
Both 5.1 and 7.1 mixing is possible on the Vision console. Mixing simultaneously to the Surround
Program Bus and all three Stereo Program Busses is also possible. Facilities are provided for real-time
fold down of the surround mix to a stereo mix.
7.1 Surround Program Outputs
While the Surround Program Bus assignment is labeled “5.1,” it is actually a 5-channel program
bus with five (5) total busses and Active Combining Amplifiers.
The Surround Program Bus is made up of five (5) individual mix busses:
•
Left
•
Right
•
Center
•
Left Surround
•
Right Surround
There are no program busses for the LFE (subwoofer) or A/B surround channels. These channels
can be created using Auxiliary Sends and/or the Fader 2 audio path.
The outputs of the 5-channel surround ACAs (SURROUND ACA OUT) are normalled to the
Surround Master Faders via the associated half-normalled patch points (SURROUND FADER IN).
To complete a 5.1 program output, a filtered LFE feed may be patched into the LFE Master Fader
(SURROUND FADER IN LFE) at this point in the signal flow. If mixing in 7.1, the A/B feed may be
patched into the A/B Master Fader (SURROUND FADER IN A/B) at this point in the signal flow.
Signals from the SURROUND SUM BUS ACCESS INPUT patch points will be added the bus feed
from the channels before the ACA.
Boosters calibrate the outputs of the Master Faders. The outputs of the boosters (SURROUND
BSTR OUT) are half-normalled to the Surround Feed Inputs (SURROUND FEED IN) distribution
patch points.
The SURROUND FEED IN distribution patch points are half-normalled to feed to up to four (4)
surround recorders (8TRACK1 IN, 8TRACK 2 IN, 8TRACK 3 IN, and 8TRACK 4 IN).
The SURROUND FEED IN distribution patch points are also half-normalled to feed the Lt Rt Fold
Down Matrix for creating automatic stereo mixes from surround mixes. An External Surround
Source may also be added to the fold-down mix. The resultant mix available at the Lt Rt Out
patch points.
7.2
5-Channel Surround Program Bus and Masters
The five (5) Surround Program Busses may be fed directly from the channel pan-pots:
•
Left
•
Right
•
Center
•
Left Surround
•
Right Surround
The 5-channel panning to the Surround Program Bus can also be from the E1068L Echo Return
modules by patching the FX RETURN SUR ACA OUT patch points to the SURROUND SUM BUS
ACCESS IN patch points.
The Fader 1 and Fader 2 channel pan-pots and E1068L pan-pots are 5-channel pan-pots:
•
Front: Left/Right or Left/Center/Right (with the LCR switch engaged)
•
Rear: Left Surround/Right Surround
•
F/R: Front/Rear panning is provided
There is no access to the LFE or A/B program outputs from the channel or E1068L pan-pots.
To activate full 5-channel surround panning, the following conditions must be met:
•
The channel must be assigned to the Surround Program Bus (5.1)
•
The LCR pan-pot switch must be engaged
