Chapter 5:
Console Operation
VCAs
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V1.0/1
Eclipse User Guide
VCA Logic
It is possible to route the same channel to more than one VCA;
for even greater flexibility, there are two logic modes:
•
Additional logic (AND)
- the levels of each VCA are
summed and applied to the slave channel.
This means that
every
VCA has an influence on the controlled
channel, and if one VCA is closed (- infinity) then the channel
will be cut. You might use this mode where you have drum
channels controlled by a Drum VCA and an overall Band VCA.
If the Drum VCA is cut and you open the Band, then you would
want the drums to remain cut!
•
Priority logic (OR)
– the VCA having the highest level
is applied to the slave channel.
This means that as long as one VCA is open, the channel will
never be cut. You might use this mode on a solo guitar mic.
Assign the guitar to both the Band VCA and to is own Solo
VCA. Normally, its level will set by the Band VCA, but when it
comes to solo you can raise the Solo VCA to push up the level
of the guitar for the solo. Once the solo has finished, cut the
Solo VCA and the guitar mic returns to the normal Band VCA
level.
The diagram below shows the effect of each mode when a
guitar channel (Guit) is assigned to three VCAs:
The choice of VCA mode is made from the
General
Preferences
window, see Page 341.
