Studio Technologies 371A, Руководство пользователя

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Model 371A User Guide Issue 1, June 2018
Studio Technologies, Inc. Page 11
MODEL 371A
INTERCOM BELTPACK
Electret microphones typically have a
higher output level due to their internal
preamplifier. As such less preamplifier gain
is required. Select either the Low (22 dB)
or High (30 dB) setting as appropriate for
the application.
The compressor active LED, visible on
the bottom of the Model 371A’s enclosure
adjacent to the headset connector, can
act as a guide when setting the micro-
phone preamp gain. During normal talk
operation the compressor active LED
should light intermittently. If, for example,
with a dynamic microphone the LED
rarely lights and the preamp gain is set
to Low (42 dB) it might be a good idea to
change it to High (48 dB) . If the LED is lit
fully during normal talking in a situation
where the headset has an electret micro-
phone and the gain is set for High (30 dB) ,
changing it to Low (22 dB) might be a
good idea.
Sidetone Level
Choices are Off , Low , Medium Low ,
Medium , Medium High , and High .
The Model 371A includes a sidetone func-
tion that allows microphone audio coming
from the microphone preamplifier to be
sent to the headphone output. This serves
as a user confirmation that they are ac-
tively sending audio to one or more of the
talk output channels. Sidetone audio will
only be routed to the headphone output
when either or both of the talk channels is
active. The level of the sidetone audio can
be selected from among five values. The
correct value is simply the one that makes
the user most comfortable. Sidetone au-
dio can also be disabled by selecting Off .
Selecting Off would be useful only in spe-
cial applications such as during trouble-
shooting or where user talk audio is being
returned as part of their listen audio signals.
The two rotary level controls will not impact
the sidetone level.
Mic Kill Support
Choices are Off , Device ID , Global Kill Com-
mand , and Device ID/Global Kill
Command .
The mic kill function allows an enabled
talk channel to be disabled by remote con-
trol. Specifically, it’s possible to remotely
change all active (on) talk channels to their
off state. This function is sometimes re-
ferred to as a “talk off” function. There are
two means available to remotely disable all
active talk channels. The Device ID method
uses the identification command generated
by the Dante Controller or STcontroller soft-
ware applications as a “trigger” to disable
any active talk channels. The I can be gen-
erated by applications that incorporate the
Studio Technologies’ proprietary method.
This method utilizes sending a data com-
mand over the Ethernet connection. Select
the desired mic kill configuration from the
four choices. Off simply means that no re-
mote talk control is supported.
Talk Button Operation
Choices are Push to Talk , Latching , Push
to Talk/Tap to Latch , and Disabled .
This configuration section allows indepen-
dent selection of how the two talk buttons
will function. When the Push to Talk mode
is selected the operation is self-explanatory.
Only when a talk button is pressed and held
will talk audio be sent out its associated
Dante transmitter channel.
When the
Latching mode is selected tap-
ping (momentarily pressing) the button will
cause the function to “latch” into the talk
active mode. Tapping the button again will