L I V E O P E R A T I O N
Live Anti Feedback Control
Initiate Live Anti Feedback Control by pressing the square button. LIVE AFC ON will illuminate. As feedback is found, filters will be used to eliminate it.
SPEAKER STATUS
Once all the |
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| FILTERS FREE 1 |
| MUSIC I |
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| WARNING |
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| FIXED AFC SET | 2 |
| MUSIC II |
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available |
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| 3 |
| SPEECH |
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| OKAY |
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| FIXED SETUP | LIVE AFC ON |
| NEUTRAL |
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filters have | 1 | 2 | 3 | 4 |
| HOLD TO CLEAR FIXED | HOLD TO CLEAR LIVE |
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been used, as indicated by FILTERS |
| Figure 23 - Live | ||||||||
FREE 1 illuminating in RED, the |
| Anti Feedback | ||||||||
Live Anti Feedback engine will |
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continue to eliminate feedback, reassigning the oldest or | ||||||||||
first placed filter to the newest feedback frequency. This | ||||||||||
will continue, but the RED LED indicates that there is a | ||||||||||
problem with the performance mix that really should be | ||||||||||
addressed, by either identifying the problem microphone | ||||||||||
and reducing its individual channel fader or by reducing the overall level, bringing down the master faders.
Now very slowly push the master faders up on the mixer (the slower the action, the more accurate the detection and allocation of filters will be). If feedback occurs, each EVO Loudspeaker will eliminate it. As you continue to push the faders up more feedback may occur at other frequencies, and you will see that the FILTERS FREE indicators show more filters being used.
When all the filters have been used, the FIXED SETUP indicator will stop flashing. You can quit the FIXED AFC setup at any time by pressing any button as long as all of the available filters have not been used. The FIXED AFC SET indicator will illuminate and Fixed Anti Feedback Control has been set and is ready to go.
It is advisable to keep extraneous noises to a minimum during this procedure to prevent inappropriate allocation of filters.
Fixed Anti Feedback Control
Set up the performance system on stage for normal operation, for example, by placing all microphones in their typical positions and faders on the mixing desk set to that of a typical mix. Set the master faders initially in their minimum settings.
FIXED AFC setup can only be performed if LIVE AFC is off. If the LIVE AFC indicator on EVOi.net is on, press and hold the LIVE AFC button until the filter indicators and the LIVE AFC indicators are extinguished.
Now
SPEAKER STATUS |
| ANTI FEEDBACK CONTROL | EQ SELECT | |||
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| FILTERS FREE 1 |
| MUSIC I | |
WARNING |
| FIXED AFC SET | 2 |
| MUSIC II | |
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| 3 |
| SPEECH | |
OKAY |
| FIXED SETUP | LIVE AFC ON |
| NEUTRAL | |
1 | 2 | 3 | 4 |
HOLD TO CLEAR FIXED HOLD TO CLEAR LIVE
Figure 24 Fixed Anti
Feedback On/Off
Clearing Anti Feedback Filters
Both sets of Live and Fixed Anti Feedback filters can be cleared by pressing and holding their respective buttons. As you hold the button each allocated filter is removed sequentially. The FILTERS FREE indicators will show filters being removed.
If during this process a filter is removed and feedback occurs, releasing the button will instantaneously
PANIC
If you run into problems with any portion of the system setup and operation, it is possible to reset all EVO loudspeaker settings by pressing all square LIVE AFC ON, EQ SELECT and AEQ ON buttons simultaneously. This will restore the factory default settings.
It is possible to reset the settings in the EVO loudspeakers using data stored in EVOi.net, see Power Up Operation on page 9 for further information.
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