Studio Technologies 76DA V.4.00 - Manual (Page 8)

Issue 3, July 2012 Model 76DA/77 User Guide
Page 8 Studio Technologies, Inc.
for Surround
bass management function, if enabled,
will redirect low-frequency energy from the
main input channels, combing it with the
LFE content before routing the sum to the
digital and analog subwoofer outputs.
The post-fader surround and stereo digital
and analog monitor output levels can be
controlled by way of a large, easy-to-use
rotary control. The control, actually a digital
encoder, allows level selection in precise
0.5-dB steps. The auto mute all function
causes the post-fader surround and stereo
monitor output channels to automatically
mute whenever the output level control
reaches maximum attenuation. Using the
reference level function, the post-fader
surround and stereo monitor output levels
can be set to a pre-configured value. This
is provided for audio-with-picture applica-
tions that require a specific monitor output
level. The reference level is easily config-
ured by taking an electronic “snapshot” of
the desired monitor output level. For opera-
tor confirmation a 4-digit LED readout can
display the level of the post-fader surround
and stereo monitor output channels. To
match the needs of a facility, it can be
configured to display either the attenuation
level or the sound pressure level (SPL).
The dim function allows the post-fader
surround and stereo digital and analog
monitor output levels to be reduced by a
fixed dB amount. The dim level is config-
ured from among four available values. A
mute all function allows the post-fader sur-
round and stereo monitor output channels
to be simultaneously muted. The channel
mute/solo section provides post-fader sur-
round and stereo channel monitoring con-
trol, allowing a single channel to be muted
or monitored. Multiple channels can also
be simultaneously selected for muting
or “soloing.”
A special solo mode is also provided,
called channel pop solo, which offers a
unique aid in monitoring audio material.
Channel pop solo allows the level of a
single post-fader digital and analog moni-
tor output channel to be raised while the
level of the other channels is reduced. This
helps to emphasize the content on one
channel without fully muting the others.
Broadcast applications can benefit from
the channel pop solo mode by allowing, for
example, the center channel to be high-
lighted while still maintaining some level on
the other channels. The amount of level in-
crease—the “pop”—as well as the amount
of attenuation can be configured to meet
the needs of specific applications or users.
Two functions allow the input sources to
be checked for level or phase inconsis-
tencies. The surround to stereo downmix
function is used to create a stereo signal
from the selected surround (5.1) source.
Key operating parameters in the surround
to stereo downmix function can be config-
ured to meet the requirements of an appli-
cation. This can be especially useful when
support for specific international broadcast
standards is required. The stereo to mono
downmix function allows audio on the left
and right channels to be added (summed)
and monitored on the center output chan-
nel. The two downmix functions can be
simultaneously enabled, allowing a sur-
round source to be checked for mono com-
patibility. The downmix functions always
impact the post-fader surround and stereo
monitor outputs. A configuration setting
allows the pre-fader surround monitor out-
put to be selected for pre- or post-downmix
operation.
For flexibility, the StudioComm for Sur-
round system is designed to easily inte-
grate with equipment such as production