Inputs - Polycom Vortex EF2241 Reference Manual

I
NPUTS
Inputs 1-4, T, A-D
Acoustic Echo
Cancellation (In 1-4)
Automatic Gain Control
(AGC), In 1-4, T
AGC Maximum
(In 1-4, T)
AGC Minimum
(In 1-4, T)
Gain
Level Mic/Line
(In 1-4)
Mute
Noise Cancellation
(In 1-4, T)
Noise Cancellation
Level (In 1-4, T)
Phantom Power
(In 1-4)
Reference Assign
(In 1-4)
AEC Suppression
(In 1-4)
Line Echo Cancellation
(In T)
Dynamics Processing
(In T)
LEC Suppression (In T)
Figure 19. EF2241
Inputs submenu
V EF2241 Reference Manual
ORTEX
The input menu allows the user to adjust functions related to the input signals to the
EF2241. This menu contains A
C , AGC M
ONTROL AXIMUM
M , N C
UTE OISE ANCELLATION
R A , and AEC S
EFERENCE SSIGN
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.
Acoustic Echo Cancellation.
echo canceller on a particular channel. The default is On.
Automatic Gain Control (Inputs 1-4, T).
trol (AGC) on Inputs 1-4 and T. The default is On.
AGC Max (Inputs 1-4, T).
apply for Inputs 1-4 and T.
AGC Min (Inputs 1-4, T).
apply for Inputs 1-4 and T.
Gain.
This parameter adjusts the gain level of the 8 inputs. This is normally config-
ured during the calibration process. The default setting is 15 dB for microphone
signals and 0 dBu for line level signals. See "Level" above for setting mic/line level
for Inputs 1-4. The L
EVEL
level of the channel whose gain is being adjusted.
Level.
Use this parameter to select mic or line level on Inputs 1-4.
Mute.
This selects which input channel (1-4, A-D) or the W, X, Y, or Z input is
muted. The default is not muted.
Noise Cancellation (Inputs 1-4, T).
noise cancellation.
Noise Cancellation Level (Inputs 1-4, T).
cellation. This ranges from 0 to 15 dB. The default is 10 dB.
Phantom Power.
Use this parameter to turn phantom power On or Off for inputs
1-4.
Echo Canceller Reference.
ated with which zone. Choose between R
AEC Suppression.
Sets the amount of double talk suppression used in the AEC.
The values correspond to the following settings: 1 = No Suppression, 2 = Light Sup-
pression, 3 = Heavy Suppression, 4 = Half-Duplex.
Line Echo Cancellation.
line.
Dynamics Processing.
LEC Suppression.
Sets the amount of suppression used the line echo canceller
(LEC).
30
E C
COUSTIC CHO ANCELLATION
, AGC M , G A
INIMUM AIN
, N C
OISE ANCELLATION
. The menu is organized around the
UPPRESSION
This allows you to enable or disable the acoustic
This enables automatic gain con-
Sets the maximum gain value that the AGC can
Sets the minimum gain value that the AGC can
I on the front panel automatically reflects the
NDICATOR
This allows you to enable or disable
This parameter decides which reference is associ-
1, R 2, or the external bus reference.
EF EF
Enables or disables the echo cancellation on the phone
Enables or disables compression on Input T.
Technical Support: 800.932.2774
LCD M S
ENU TRUCTURE
, A G
UTOMATIC AIN
, L M /L ,
DJUST EVEL IC INE
L , P P
EVEL HANTOM OWER
Selects the level of noise can-
,