Studio Technologies 76D V.2.02 - Manual (Page 8)

Issue 2, June 2009 Model 76D/77 User Guide
Page 8 Studio Technologies, Inc.
for Surround
unique aid in monitoring audio material.
Channel pop solo allows the level of a
single channel to be raised while the level
of the other channel 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 allowing, for example, the
center channel to be highlighted while still
maintaining some level on the other chan-
nels. The amount of level increase—the
“pop”—as well as the amount of attenua-
tion 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 inconsistencies.
The 5.1 to stereo downmix function is used
to create a stereo signal from the selected
surround (5.1) source. 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
intercom systems, on-air or recording tally
signals, and audio consoles. Two remote-
control input functions are provided: mute
all and dim. By providing access to these
functions, talkback or slate activity from
an audio console or other communications
system can control the level of the post-
fader surround and stereo monitor outputs.
Installation
In this section you will be installing the
Model 76D Central Controller in an equip-
ment rack. Connections to the audio inputs
and monitor outputs will be made. If desired,
external equipment will be interfaced to
the remote control inputs. A location will be
selected for the first Model 77 Control Con-
sole and it will be connected to the Model
76D. AC mains power will be connected to
the Model 76D. For advanced applications
up to three additional Model 77 or Model 71
Control Console units can be connected to
the Model 76D.
System Components
The main shipping carton contains one each
of the following: Model 76D Central Control-
ler, Model 77 Control Console, 9-pin D-sub
interconnecting cable, and user guide. Also
included in the shipping carton is a North
American-standard AC mains cord. Your
dealer or distributor should provide an AC
mains cord appropriate for destinations out-
side of North America. Any additional Model
77 or Model 71 Control Consoles will be
shipped in separate cartons.
Mounting the Model 76D
The Model 76D Central Controller requires
one space in a standard 19-inch (48.3 cm)
equipment rack. Select a location that is
convenient for making connections to the
audio signals as well as interfacing with
the first (or only) Model 77 Control Console.
A cable is supplied to connect the Model
76D to the Model 77. If the needs of a
specific installation dictate, an alternate-
length interconnecting cable can be fabri-
cated and used. Secure the Model 76D
into the equipment rack using two mounting
screws per side.