Studio Technologies 76DA V.4.02 - Manual (Page 24)

Issue 4, March 2013 Model 76DA/77 User Guide
Page 24 Studio Technologies, Inc.
for Surround
remain at unity, with no gain or loss applied.
An alternate setting allows the level of L
and R input channels to be reduced (at-
tenuated) by 3 dB. (The available changes
in signal level can also be notated as 0 dB
or –3 dB.)
When the surround to stereo downmix
function is active the left surround (LS)
input is routed to the left (L) post-fader
monitor output; the right surround (RS)
input is routed to the right (R) post-fader
monitor output. By default the level of the
LS and RS signals routed to L and R will be
reduced (attenuated) by 3 dB. An alternate
setting allows the levels to be reduced by
6 dB. (These settings can also be notated
as –3 dB and –6 dB.)
When the surround to stereo downmix func-
tion is active the center (C) input is routed
to both the left (L) and right (R) post-fader
monitor outputs. By default the level of the
C signal routed to L and R will be reduced
(attenuated) by 6 dB. An alternate setting
allows the attenuation level to be 3 dB.
(These levels can also be notated as –3 dB
and –6 dB.)
By default, when the surround to stereo
downmix function is active the LFE channel
associated with a surround input is fully
attenuated (muted). This removes LFE
content from the “downmixed” signal. In
most applications this is appropriate. How-
ever, for special situations a configuration
mode allows the LFE channel to be reduce
by 6 dB and routed to both the left (L) and
right (R) post-fader monitor outputs.
A last word on configuring the surround
to stereo downmix function: no matter
what choices are made when the function
is active the center (C), left surround (LS),
right surround (RS), and subwoofer (SUB)
post-fader monitor outputs will fully mute.
Pre-Fader Surround Digital
Monitor Output Mode
The pre-fader surround digital monitor out-
put can be configured as to its place in the
Model 76DA’s signal flow. The choices are
pre- or post-downmix. In the pre-downmix
mode the digital monitor output channels
will not be impacted by the state of the
downmix functions. This setting would be
appropriate if the pre-fader surround digi-
tal monitor outputs were being routed to a
storage system, routed to another facility,
etc. In this case the action of an operator
enabling or disabling the downmix func-
tions won’t impact the pre-fader surround
digital monitor output signals. If the post-
downmix mode is selected the pre-fader
surround digital monitor outputs will reflect
the actions of the downmix functions. This
choice would be correct if, for example,
level meters were connected to the pre-
fader surround digital monitor outputs. In
this scenario an operator would want to
visually observe the actions that the down-
mix functions impart on the signals.
Channel Pop Solo Mode
Offset Levels
Two parameters can be configured that
determine how the channel pop solo func-
tion will impact the output levels of the
post-fader digital and analog monitor out-
puts. The up offset level sets the amount
of increase (gain) that a channel will expe-
rience when it is soloed in the channel pop
solo mode. The down offset level sets the
amount of decrease (attenuation) that the
non-soloed channels will experience when
a channel is active in the channel pop solo
mode.