Automatic Gain Control (Agc) - dbx Zone Pro 640 User Manual

ZonePro
Flat /Restore
These buttons either flatten (Flat) or restore (Restore) all bands to their original settings.
Band (1-4) Frequency 20Hz to 20kHz (Low Shelf)
Selects the frequency of the EQ.
Q (1-4) 0.105 to 16.0
Selects the Q or the Bell parametric EQ.
Slope (Type: High and/or Low Shelf Selected) 3-12dB/Octave
Sets the slope of the High and/or low shelf parametric EQ.
Level (1-4) -12 to 12 dB
Sets the overall level of the selected parametric EQ.
The AGC is used to keep the average level of a signal constant. This is done by selecting a
desired Target output level and Window. The AGC keeps the signal within the Window about
the selected Target by slowly adjusting the gain. The maximum gain that can be applied to the
signal is selected by the Gain parameter. When the input signal falls below the Threshold the
AGC releases the gain and returns to unity. This prevents the AGC from adding gain when
there is no signal present and raising the system noise floor. High level peak signals are
reduced by a fast limiter to prevent distortion by clipping. The AGC Threshold meters show
what region of the AGC the input signal is in. The T (yellow) indicates the signal is within the
Window. A + (red) indicates the signal is above the target window. A – (green) indicates the
AGC is adding adding Gain and is at or below the window. When the Threshold meter is off
the signal is below the Threshold. The AGC module also includes a dedicated Limiter.
AGC On/Off
Turns the AGC module On and Off.
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Detailed Parameters
4.3 - AGC ( Insert and DYN Module)
ZonePro
Section 4
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