Studio Technologies 371A, Руководство пользователя

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Issue 1, June 2018 Model 371A User Guide
Page 14 Studio Technologies, Inc.
MODEL 371A
INTERCOM BELTPACK
output is active. The button will not be lit
when the function is not active.
Latching
If a button has been configured for the
Latching mode operation momentarily
pressing (“tapping”) the button will cause
the function to change states; off-to-on
or on-to-off. Whenever the talk function is
active the green LED will light. The but-
ton will not be lit when the function is not
active.
Push to Talk/Tap to Latch
If a button has been configured for the
Push to Talk/Tap to Latch mode operation
is a bit different and certainly more flex-
ible. Press and hold the button to activate
the talk function. When released the talk
function will turn off. Momentarily pressing
(“tapping”) the button will cause the func-
tion to change states; off-to-on or on-to-
off. Whenever the talk function is active the
green LED will light. The button will not be
lit when the function is not active.
Disabled
A button that is configured to the Disabled
mode will never allow talk audio to be
sent to the associated Dante audio output
channel. But to provide “feedback” that
the button has been pressed the button’s
green LED will flash rapidly three times.
This says, in effect, “Yes, I recognize that
you pressed the button but I’m not going
to do anything in response!”
Sidetone Function
The Model 371A includes a sidetone func-
tion that sends microphone audio to the
headphone output whenever one or both
of the talk buttons are active. The quality
of the sidetone audio should be excellent
and will provide Model 371A users with
a confidence signal that they are actively
talking to other intercom users. The exact
sidetone level is configured from among
five values within the STcontroller applica-
tion. There is also a selection choice for
turning off sidetone. There is no means
of adjusting the sidetone level using a
physical button or control on the Model
371A unit. Also, the two headphone level
controls on the top panel of the unit do not
impact the sidetone level.
In most cases the exact sidetone level
setting is not critical and typical users will
not be concerned about revising it. But
setting the sidetone level to something
reasonable is important. Setting the level
too low will encourage users to speak too
loudly; setting it too high and users will
be tempted to speak hesitantly. And while
users aren’t provided with a sidetone level
control or other adjustment means, should
the need arise STcontroller allows rapid
adjustment of the sidetone level. In most
cases the default sidetone level, Medium ,
should provide an appropriate level.
Call Function
An integrated call function allows Model
371A users, and users of compatible
equipment, to signal to each other visu-
ally. Individual call functions are provided
for each of the two talk channels. Either
or both can have its call function active at
any one time. Technically call is achieved
by sending a 20 kHz audio tone on the
desired audio output channel. This signal
is summed (mixed) with normal talk audio.
The Model 371A’s two audio input chan-
nels continually monitor for the presence
of 20 kHz. A call signal recognized when a
continuous 20 kHz tone is detected on the
audio input for that channel.