Studio Technologies 58 1998 - Manual (Page 27)

Model 58/59 User Guide Issue 2, April 1998
Studio Technologies, Inc. Page 27
for Surround
Mode 2, maintain normal signal flow. In
this mode the normal audio signal contin-
ues to flow through the insert section. This
is effectively a “no-insert function” function!
The insert send continues to be active, but
the insert return is not active.
Mode 3, replace the normal signal with
the insert return signal. This is the conven-
tional insert function that most consoles
provide. The normal signal no longer flows
through the insert. The return signal is
connected into the signal path.
Mode 4, mix the insert return signal with
the normal signal. In this mode the normal
signal is still active in the signal path, with
the insert return signal mixed (summed)
with it. No level change is performed, they
are mixed at nominal level. Any level
reduction required to prevent “buildup”
needs to be done externally.
If one of the insert sections is going to
used as part of an ALF/solo function, the
individual channels must be carefully
configured. The insert channels that are
connected to the AFL/solo audio should
be set to mode 3. The unused insert
channels must be set to mode 1.
A special mode has been included to allow
an insert section to be disabled from
operation. This is accomplished by config-
uring all eight channels to mode 2, main-
tain normal signal flow. With this config-
uration an operator can press the associ-
ated insert button “till the cows come
home” and the function will never activate.
This is another attempt at making the
Model 59 “idiot proof.”
In many cases both insert sections may
not be wired to external devices. This
doesn’t mean that both insert sections
can’t be used effectively. An unused insert
section could be configured to perform
a special mute. An example would be to
configure insert 2 to mute the surround
channels, leaving only the front channels
active. This would give an operator a quick
way of checking the effect of the surround
information on the total mix.
Monitor Output A/B Select
While the Model 58 Central Controller
supports the connection of two sets of
monitor loudspeakers, often only the A
output will be used. The monitor output A/
B select button on the Model 59 Control
Console can be disabled, preventing an
operator from selecting output B. Only the
A LED will be lit, and the button will be
inactive.
Reference Level
For audio-with-picture applications it’s
critical that mixing be done in reference
to a known monitor loudspeaker level. This
is often referred to as mixing to “85dB” on
the monitors. The Model 59 Control Con-
sole allows a precise monitor output level
to be stored, and then enabled by pressing
the button labeled REF. Setting the REF
level is very simple:
1. Place the StudioComm for Surround
system in the normal operating mode,
not the configuration mode.
2. Set up a precision sound pressure
level (SPL) measuring device at the
desired listening location.
3. Use the Model 59 Control Console
to select the reference signal source,
e.g., pink noise, as the input source.
Be certain that the ref and dim func-
tions are not active.