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LCD MENU STRUCTURE
VORTEX EF2201 Reference Manual 18 Technical Support: 800.932.2774
I
NPUTS
The input menu allows the user to adjust functions related to the input signals to the
EF2201. This menu contains L
INE ECHO CANCELLATION, AUTOMATIC GAIN CON-
TROL, AGC MAXIMUM, AGC MINIMUM, GAIN ADJUST, MUTE, NOISE CANCELLA-
TION, NOISE CANCELLATION LEVEL, LEC SUPPRESSION, and DYNAMICS
P
ROCESSING. The menu is organized around the Inputs (1-4) and (A-D), so that you
first select an input and then select settings for that input. You can also choose to
apply the settings to all Inputs, Inputs 1-4, or Inputs A-D.
Line Echo Cancellation. Enables or disables the echo cancellation on the phone
line.
Automatic Gain Control (Input T). This enables automatic gain control
(AGC) on Input T. The default is On.
AGC Maximum (Input T). Sets the maximum gain value that the AGC can
apply for Input T. The default value is +12 dB.
AGC Minimum (Input T). Sets the minimum gain value that the AGC can
apply for Input T. The default value is -6 dB.
Phone Input Gain. This parameter adjusts the gain level of the phone input
(Input T). This is normally configured during the calibration process. The default
setting is 0 dB .
Mute. Mutes/unmutes phone input. The default is not muted.
Noise Cancellation (Input T). This allows you to enable or disable noise can-
cellation.
Noise Cancellation Level (Input T). Selects the level of noise cancellation.
This ranges from 0 to 15 dB. The default is 5 dB.
LEC Suppression. Sets the amount of suppression used the line echo canceller
(LEC).
Dynamics Processing. Enables or disables compression on Input T.
Figure 10. EF2201
Inputs submenu
Input Settings
Phone Input Gain
AGC Minimum
Automatic Gain
Control (AGC)
Line Echo
Cancellation
Noise Cancellation
Mute
AGC Maximum
LEC Suppression
Noise Cancellation
Level
Dynamics
Processing
Input T
20


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