Manual

Model 381 User Guide Issue 2, March 2020
Studio Technologies, Inc. Page 13
MODEL 381
ON-AIR BELTPACK
Talkback Active
In this mode the sidetone function will be ac-
tive whenever the talkback function is active
and the audio signal is present on the Dante
talkback output channel. Whenever the main
output function is active sidetone audio will
not be enabled.
Always Active
In this mode the sidetone function will always
be active and sidetone audio will be continu-
ously routed to the headphone output.
Headphone Output – Fixed Sidetone
Level
Choices are
Off, Low, Medium Low, Medium,
Medium High, and High.
When the configuration for the Headphone
Output – Controls (A/B) is set for either of
the dual-channel modes the level of the
sidetone audio will follow the Fixed Side-
tone Level setting. This level can be selected
from among five values. The correct value
is simply the one that makes the user most
comfortable. Sidetone audio can also be dis-
abled by selecting the Off choice. Selecting
Off is useful for applications such as when
user microphone audio (a “full mix”) is being
returned as part of their listen audio signals.
As previously discussed, the Fixed Sidetone
Level choice will be “grayed out” and inac-
cessible if the Ch 1 & 2 / Sidetone mode
is selected for the Headphone Output –
Controls (A/B) configuration choice. In this
case the rotary control on the right, labeled
B, will be used to adjust the sidetone level.
Talkback Button – Operation
Choices are Momentary and Latching.
STcontroller allows the operating configura-
tion of the talkback button to be selected.
There are two choices available.
Momentary
If this mode is selected when the talkback
button is not pressed the microphone signal
will be sent to the Dante main output chan-
nel and the Dante talkback output channel
will be muted. The green LED associated
with the talkback button will be lit. When-
ever the talkback button is pressed and
held the audio signal will mute on the Dante
main output channel and the audio signal
will become active on the Dante talkback
output channel. In addition, the talkback
button will light orange.
Latching
If this mode is selected the talkback func-
tion will alternate between its on (active)
and off (inactive) states whenever the
button is momentarily pressed. The button
will light green whenever the main output
is active and light orange whenever the
talkback output is active. Upon power being
initially applied to the Model 381 the main
output function will be active and the talk-
back button will be lit green.
System Mode – Main Output Source
Choices are Pre-Compressor and Post-
Compressor.
This STcontroller selection allows the audio
source for the main output channel to be
selected. There are two choices available.
In most cases the post-compressor selec-
tion will be appropriate. In all cases the out-
put of the compressor circuitry will be used
by the talkback output (transmitter) channel.
Pre-Compressor
When selected for Pre-Compressor the
audio source for the Dante main output
channel will be the output of the micro-
phone preamplifier. No dynamic range
control is performed on the signal that is
provided to the main output. This selection