Inputs - Polycom Vortex EF2280 Reference Manual

I
NPUTS
Inputs 1-8, A-D
Acoustic Echo
Cancellation (In 1-8)
Automatic Gain Control
(AGC), In 1-8
AGC Maximum
(In 1-8)
AGC Minimum
(In 1-8)
Gain
Level Min/Line
(In 1-8)
Mute
Noise Cancellation
(In 1-8)
Noise Cancellation Level
(In 1-8)
Phantom Power
(In 1-8)
Reference Assign
(In 1-8)
AEC Suppression
(In 1-8)
Figure 11. EF2280
Inputs submenu
V EF2280 Reference Manual
ORTEX
The input menu allows the user to adjust functions related to the input signals
to the EF2280. This menu contains A
G C , AGC M
AIN ONTROL AXIMUM
M , N C
UTE OISE ANCELLATION
A , and AEC S
ENCE SSIGN UPPRESSION
(1-8) 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 1-8,
or Inputs A-D.
Acoustic Echo Cancellation.
acoustic echo canceller on a particular channel. The default is On.
Automatic Gain Control (Inputs 1-8, T).
gain control (AGC) on Inputs 1-8 and T. The default is On.
AGC Max (Inputs 1-8, T).
can apply for Inputs 1-8 and T.
AGC Min (Inputs 1-8, T).
can apply for Inputs 1-8and T.
Gain.
This parameter adjusts the gain level of the 12 inputs. This is nor-
mally configured during the calibration process. The default setting is 15
dB for microphone signals and 0 dB for line level signals. See "Level"
above for setting mic/line level for Inputs 1-8. The L
front panel automatically reflects the level of the channel whose gain is being
adjusted.
Figure 21 below shows the gain adjust on Inputs 1-8 and A-D and the matrix
crosspoints.
Input Channel (1 of 8)
Mic Preamp
Adjustable 33 to 63 dB
Adjustable 20 to -100dB
Input Channel (A, B, C, or D)
Input Level
Adjustable 0 to 20dB
Adjustable +20 to -100dB
Figure 12. Gain adjust and matrix crosspoints of Inputs 1-8 and A-D.
22
E
COUSTIC CHO
, AGC M , G
INIMUM AIN
, N C L
OISE ANCELLATION EVEL
. The menu is organized around the Inputs
This allows you to enable or disable the
Sets the maximum gain value that the AGC
Sets the minimum gain value that the AGC
Matrix Cross point
Matrix Cross Point Gain Adjust
+20 to -100dB
Matrixer
Matrix Cross point
Matrix Cross Point
Gain Adjust
+20 to -100
Matrixer
Technical Support: 800.765.9266
LCD M S
ENU TRUCTURE
C , A
ANCELLATION UTOMATIC
A , L M /L ,
DJUST EVEL IC INE
, P P , R
HANTOM OWER EFER
This enables automatic
I on the
EVEL NDICATOR
Output Channel (1 of 12)
Output
Output Channel (1 of 12)
Output
-