POWER CORE User Manual
Version: V6.0.0/5
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9. Audio Mix Engine
9.10
Surround Mixing
9.10.1 Creating 5.1 Sources
Surround sources can be added to the "
Source
" branch of the 'Tree Definition':
1.
Insert a new
Source
in the usual manner, see
2.
Set the source
Type
to either
5.1
or
5.1+2
:
9.10.2 Creating 5.1 Busses
Surround summing busses can be added to the "
Sum Bus
" branch of the 'Tree Definition':
1.
Insert a new
Sum Bus
in the usual manner, see
2.
Set the source
Type
to either
5.1
or
5.1+2
:
9.10.3 Pan & Balance with 5.1 Summing Busses
Pan parameters vary according to whether the source is mono, stereo or surround.
On a mono source you can adjust:
·
Left/Centre/Right pan position
·
Front/Rear pan position
·
Slope
– from 0.0 to 1.0 (see below).
·
LFE
– low frequency effect level, from -120 to +9 dB
.
Front/rear pan, slope and LFE level are only available if a surround bus is configured on your console and
surround parameters are enabled on the source.
The Slope adjusts signals feeding the discrete centre channel within the surround field. It may be used to balance
between discrete and phantom centre signals. To see the effect, position the source at front centre, and adjust
the slope to a setting of 1.0; the signal feeds only the discrete centre output. Now set the slope to a value of 0.0;
the signal feeds only left and right (phantom centre).
On a stereo source you can adjust the left/right balance, front/rear pan and LFE level. Centre slope is not
available.
On a surround (5.1) source you can adjust LFE level only; the surround source is assigned directly to the
surround bus (e.g. left to left, centre to centre, etc.)
If a surround source is assigned to a stereo bus, then the source is mixed onto the bus according to the
parameters set within the configuration. If a surround source is assigned to a mono bus, then the stereo
downmix is converted to mono by subtracting 3dB from, and then summing, the L and R channels.
