Studio Technologies 373A User Manual page 11

When a dynamic microphone is connected to the
Model 373A the 42 dB gain setting should be appro-
priate for many applications. The 36 dB choice may
be correct should the connected microphone have a
high sensitivity (high output level for a given acoustical
input) or an enthusiastic user routinely talks loudly into
the microphone. Setting the gain for 48 dB may be
helpful in some applications, such as with headsets
that have a low microphone output level. The 48 dB
gain setting may also be useful when the Model 373A
is going to be deployed at events where users are not
able to speak at normal levels, e.g., sporting events
such as golf tournaments where "whispering" may
be necessary.
Electret microphones typically have a higher out-
put level due to their internal preamplifier circuitry.
As such, less preamplifier gain may be required.
Selecting the 24 or 30 dB gain setting will probably
be appropriate in these cases.
The compressor active LED, labeled COMP and
visible adjacent to the HEADSET A connector, can act
as a guide when setting the microphone preamplifier
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 42 dB it might be a good
idea to change it to 48 dB. If the LED is lit fully during
normal talking in a situation where the headset has
an electret microphone and the gain is set for 30 dB,
changing it to 24 dB might be warranted.
Headphone Output Channel Routing
Choices are Left, Right, and Left and Right.
Two Dante transmitter (output) channels can be
assigned to the Model 373A's two Dante receiver
(input) channels using the Dante Controller appli-
cation. How these two audio signals are routed to
the Model 373A's headphone output channels can
be independently configured. For flexibility, each
input source has three routing options. They can be
independently configured for sending only to the left
channel, only to the right channel, or sending to both
the left and right headphone output channels.
If a headset is to be connected to Headset A then both
input channels should be routed to the left channel
of the headphone output. (Remember that Headset
A only provides a connection to the headphone
Model 373A User Guide
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Model 373A
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output's left channel.) If a headset is to be connected
to Headset B then the input channels can be assigned
to the two headphone output channels as desired.
A stereo, dual-channel monaural, or single-channel
monaural configuration can be created as necessary
to best support an application.
Sidetone – Level
Choices are Off, Low, Medium Low, Medium,
Medium High, and High.
The Model 373A includes a sidetone function that
allows microphone audio coming from the micro-
phone input section to be sent to the headphone
output. This serves as a user confirmation that they
are actively sending audio to the talk output channel.
Sidetone audio will only be routed to the headphone
output when the talk channel 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 audio can also
be disabled by selecting Off. Selecting Off would be
useful only in special applications such as during
troubleshooting 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.
Button Operation – Talk
Choices are Push to Talk, Latching, and Push to
Talk/Tap to Latch.
This configuration section allows selection of how the
talk button will function. When the Push to Talk mode
is selected, the operation is self-explanatory. Only
when the talk button is pressed and held will talk audio
be sent out the Dante transmitter (output) channel.
When the Latching mode is selected, tapping
(momentarily pressing) the button will cause the func-
tion to "latch" into the talk active mode. Tapping the
button again will cause the function to "unlatch" and
talk will no longer be active.
When the Push to Talk/Tap to Latch mode is selected,
a "hybrid" function of sorts is enabled. Pressing and
holding the talk button will enable audio to be sent
out the Dante transmitter (output) channel. When the
button is released, audio will stop being sent out the
transmitter channel. Tapping (momentarily pressing)
the button will cause the function to "latch" into the talk
active mode. Tapping the button again will cause the
function to "unlatch" and talk will no longer be active.
Issue 2. June 2023
Page 11