Operation Manual

TROUBLESHOOTING

VORTEX EF2280 Reference Manual 36 Technical Support: 800.932.2774

ROUBLESHOOTING

UTOMATIC

ICROPHONE

IXER

No microphones are

gating

• Check if the microphones are muted.

• Are microphones part of one of the 2 automixers?

Some microphones

are not gating

• Check if the microphones are assigned to an automixer.

• Check if the microphones are muted.

• Check microphone levels. Are microphones set to the appropriate mic or line

level? Is phantom power on where needed?

• The Hold Time may be too low. 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.

• Check Gating settings. Are microphones Forced Off?

• Is Chairman Mode on? If you have assigned a Chairman Mic, all other micro-

phones will gate Off once this microphone gates on.

• Check Gating Priority. If your inputs have a Gating Priority of 4, the micro-

phones may not gate as frequently.

• Check Maximum Number of Open Microphones. This parameter sets the num-

ber of open microphones allowed at any time. If this parameter is set too low, the

microphones may not gate as often as you wish.

• Adjust the Gate Ratio if the Gate Threshold is set to Adaptive or adjust the Man-

ual Threshold if the Gate Threshold is set to Manual. For Adaptive Gate Thresh-

old, set the Gate Ratio lower so that the microphone will gate On when lower

level signals are present at the microphone. For Manual Gate Threshold, set the

Manual Threshold to a lower absolute threshold.

Too many

microphones are

gating

• The Hold Time might be too high. Too many microphones gating on at the same

time may be the result of Hold Time values that are too high.

• Assign a Chairman Mic. This will cause all other microphones to gate Off once

this microphone gates on and will prevent too many microphones from gating.

• Set Gating Priority so that not all microphones have the same priority. The

default value for each input is a Gating Priority of 1, which is the highest priority.

• Adjust the Gate Ratio if the Gate Threshold is set to Adaptive or adjust the Man-

ual Threshold if the Gate Threshold is set to Manual. For Adaptive Gate Thresh-

old, set the Gate Ratio higher so that the microphone will gate when only louder

signals are present at the microphone. For Manual Gate Threshold, set the Man-

ual Threshold to a higher absolute threshold.

• Using the Adaptive Gate Threshold is recommended for more accurate gating.