Operation Manual

LCD MENU STRUCTURE
VORTEX EF2280 Reference Manual 32 Technical Support: 800.932.2774
A UTOMIXER M ENU
These parameters configure how the EF2280 automatic microphone mixer oper-
ates. Parameters include the following: D
ECAY TIME, HOLD TIME, CAMERA
G
ATING THRESHOLD, BUS ID, CHAIRMAN MODE, CHAIRMAN MIC, LAST MIC ON
M
ODE, LAST MIC NUMBER, LOCAL MAX NOM, GLOBAL MAX NOM, OFF
A
TTENUATION, AUTOMIXER, THRESHOLD TYPE, GATING MODE, GATE RATIO,
M
ANUAL THRESHOLD, and MIC PRIORITY.
Global Settings.
Decay Time. Decay time is the amount of time the microphone audio takes to
ramp down to the Off Attenuation level after Hold Time. Decay Time values
range from 0 to 5000 msec. The default value is 1000 msec.
Hold Time. This is the amount of time the microphone stays On after the energy
in the channel drops below the gating threshold. The default value is 500 msec.
The range is 1 to 5000 msec. Microphone channels gating On and Off too fre-
quently during short pauses in speech might be the result of setting the Hold
Time too low while too many microphones gating on at the same time may be the
result of Hold Time values that are too high.
Camera Gating Threshold. Specifies the hold time for camera gating informa-
tion.
Figure 23. EF2280
Automixer submenu
Automixer
Mixer Settings
Global Settings
Channel Settings
Figure 24. Automixer parameters.
Ambient Level
G ATE R ATIO
Channel OFF
Channel ON
Channel turns on
when signal level
is above gate ratio
Microphone
Audio
Time
Signal Level
H OLD
T IME
O FF A TTENUATION
D ECAY
T IME
Global Settings
Decay
Hold Time
Camera Gating
Threshold
Automixer