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100 Innovation Place • Lexington SC 29072 USA
avtecinc.com
•
IMPORTANT
The microphone level must be set using this property instead of through the Windows Control Panel.
Changes made to the microphone level slider in the Windows Control Panel are NOT reflected in Scout's
console configuration.
6. In the
Mic Gain (dB)
field, enter the value of gain adjustment, in decibels, that the Software Media Workstation
should apply to the jack box. Range: –40 to 40 dB. Default: 0 dB.
NOTE
Mic Gain (dB)
adjustments should only be made in small increments.
7. From the
VAGC
dropdown, select whether or not to enable Voice Automatic Gain Control (VAGC) to adjust the
dispatcher's input signal as it enters this device. Default: ENABLED.
If
ENABLED
is selected from the
VAGC
dropdown, the following fields display:
a. In the
VAGC Low Target (dB)
and field, enter the minimum level of the range in which VAGC applies
gain to a dispatcher's input signal so the output signal remains in this range. Range: –30 to 0 dB.
Default: –20 dB.
NOTE
The
VAGC Low Target (dB)
value must be less than the
VAGC High Target (dB)
value.
b. In the
VAGC High Target (dB)
field, enter the maximum level of the range in which VAGC applies
attenuation to a dispatcher's input signal so the output signal remains in this range. Range: –30 to 0
dB. Default: –10 dB.
c. The
VAGC Max Loss (dB)
field, enter the maximum amount of attenuation VAGC will apply for
transmit audio to remain at or below the
VAGC High Target (dB)
. Range: 0 to 23 dB. Default: 23 dB.
d. The
VAGC Max Gain (dB)
field enter the maximum amount of gain VAGC will apply for transmit
audio to remain at or above the
VAGC Low Target (dB)
. Range: 0 to 23 dB. Default: 20 dB.
e. In the
VAGC Threshold (dB)
field, enter the minimum decibel level where VAGC begins to apply gain
to a dispatcher's input signal. Range: –65 to –20 dB. Default: –35 dB.
IMPORTANT
Use caution when setting these fields. Avtec recommends first adjusting the
Windows Input
Level (%)
and
Mic Gain (dB)
settings before attempting to adjust any VAGC setting.
8. In the
Output Level (dB)
field, enter the level, in decibels, that the Software Media Workstation should use to
output audio from this jack box. Range: –40 to 0 dB. Default: –10 dB.
9. In the
On-Hook Switch
field, select whether to enable hookswitch on the jack box handset cradle. Default:
DISABLED.
6
Avtec USB NENA Jack Box Configuration Guide
| October 2021 | Revision 9
