Studio Technologies 76DA V.4.12 - Manual (Page 24)

Issue 9, May 2014 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 re-
duced 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, lev-
el meters were connected to the pre-fader
surround digital monitor outputs. In this
scenario an operator would want to visu-
ally observe the actions that the downmix
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.