ZonePro
™
User Manual
Target -20 to 20 dB
The Target parameter defines where you would like the average level of the AGC output to be.
If the average level of the signal rises above the Target the gain will be reduced. For signals
with an average level below the Target the gain will be increased.
Gain 1 to 20dB
This adjusts the maximum amount of gain that can be added by the AGC.
Window 1 to 10dB
This adjusts the amount of variation in the output
Low Threshold -60 to -30dB
The Low Threshold sets a lower limit to the AGC. This prevents the AGC from adding gain to
low level signals or noise.
Attack 0.20 to 5 Seconds
This adjusts how fast the AGC will increase gain.
Release 30.0 to 1 dB/Second
This adjusts how fast the AGC will reduce gain.
AGC Limiter Threshold -40 to +20dBu
The AGC is designed to add or remove gain slowly to maintain an average signal level.
Because of its slow nature a fast Limiter has been added to protect speakers from sudden tran-
sients. The Limiter threshold can be set from the top of the AGC Window up to +20dBu.
AGC Limiter Attack .01 to 200 m Sec
This is the speed at which the limiter starts to compress the signal once it has crossed the
threshold.
AGC Limiter Release 360 to 5 dB / Sec
Just like the release time on the compressor, the limiter's release time controls how fast the lim-
iter releases from gain reduction after the signal drops below the threshold.
The notch filter is the perfect tool for dropping out undesirable frequencies that may appear in
the input signal.
4.4 - Notch Filters (Insert Module)
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