Studio Technologies ISS - Manual (Page 4)

ISS User Guide Issue 3, June 1990
Studio Technologies, Inc. Page 5
ISS
Introduction
Your ISS was inspected and carefully
checked at the factory. We suggest, how-
ever, that you inspect the shipping cartons
and all contents for any damage.
If you do find damage, save the cartons and
all packing material and notify the shipper.
You are responsible for any shipping claims
that must be made.
The shipping carton will contain your ISS
mainframe, ISS circuit cards, ISS front
panel, ISS instruction manual, mainframe
instruction manual, warranty cards, and a
power cord. If any of these materials are
missing, contact your dealer or Studio
Technologies, Inc. immediately.
General Description
The Studio Technologies ISS Integrated
Simulator System is designed for use in
conjunction with MTS television broadcast
operations. The television broadcaster is
faced with the reality of having to broadcast
a combination of stereo and mono audio
material. Stereo simulators can greatly
improve the listener’s appreciation of “ste-
reo” TV. The ISS combines excellent stereo
simulation with advanced control circuitry
to provide superior audio and operational
performance.
Major Functions
The ISS provides several major functions:
Stereo Simulation: The ISS produces great
sounding simulated stereo. To create this
“sound” the ISS contains two stereo simula-
tor circuit cards. These cards work together
to transform a mono signal into left and
right channel signals that give an excellent
stereo “feel,” while keeping the voice sig-
nals in the center. The ISS Type I simulator
card provides simulation over the entire
audio spectrum. The Type II simulator card
adds a specialized filter to give greater
simulation to all frequencies except those in
the voice band. The Type II card ensures
that excellent voice centering is maintained.
The simulated stereo is completely mono
compatible. The sound of the ISS is factory
optimized for the best overall performance.
Input/Output Circuitry: The input/output
circuitry of the ISS provides switch select-
able 0, +4, or +8dBu operation to match
the requirements of most broadcast facili-
ties. Careful circuit design provides excel-
lent audio performance. The Transfer Relay
Assembly connects the audio input signals
directly to the audio output connectors in
the event of a system malfunction, power
failure, or operator request, thus ensuring
no interruption of broadcast audio.
Audio Control: A smooth electronic
crossfade circuit routes either the line in-
puts, or the outputs of the stereo simulator
cards to the ISS line outputs. Three cross-
fade speeds are used to ensure the appro-
priate action. The ISS has been designed
to provide the best simulated stereo sound
with the least obtrusive operation.
Remote Control Operation: Extensive fea-
tures allow the operating status of the ISS
to be displayed and controlled remotely.
Relay contacts provide system status indi-
cation. These are also known as tally sig-
nals. Continuous or pulse logic level inputs
give the user complete control over the ISS
operating status.