Operating Manual - digiMIX18 Digital Mixer
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4.3 GEQ Graphic EQ
The 31-band GEQ graphic equalizer is only available for
main L/R and aux1-8 outputs, not on inputs or FX1-2.
Adjust GEQ lters by selecting and dragging them up and
down on the touchscreen, or use the
up/down/left/right but-
tons and
Adjust Parameter knob. The left/right buttons select
frequency, and the up/down buttons or Adjust Parameter
knob can be used to adjust lter boost and cut.
The GEQ is engaged when the <On> button on the touch-
screen is solid green. To bypass the GEQ, press the <On>
touchscreen button again or press the EQ Bypass button
found at the right of the screen.
To return all lters to 0dB, press the touchscreen <Flat EQ>
button, or press the Flat button to the right of the screen.
Up to 48 different GEQ lter curves can be saved and recalled. Current GEQ lter settings can be copied to main L/R or aux1-8
outputs using the touchscreen or panel <Copy> button.
4.4 Expander/Gate
A noise gate is typically used to eliminate unwanted, low
level noise from an individual input, allowing only the
louder signals to pass. An expander is used to increase the
dynamic range of a signal by lowering the quietest signals.
Threshold is the input signal level above which the gate opens
up and input signal is allowed to pass through unchanged.
Attack sets the amount of time from when the input signal
reaches threshold to when the gate actually opens up. A me-
dium attack time helps the gating action sound more natural.
Release sets the time the gate remains open after signal
level falls back below threshold.
Ratio determines how much the input signal gets attenuated
when the gate is closed. Innite ratio completely silences the input when its signal is below the threshold, while a lower ratio
allow some signal to pass through at all times.
When used as a downward expander, the idea is to extend the signal's dynamic range by taking the quieter signals and lower-
ing their level even further. The lower the ratio control, the
more signal below threshold will pass through. The higher
the ratio, the greater the dynamic range will be between
softest and loudest signals. An innite ratio silences all
signal below the threshold.
4.5 Compressor/Limiter
This compressor/limiter has adjustable gain, threshold, at-
tack time, release time, and ratio. The controls will only
work when the ON button is pressed. The green bar above
the ON button indicates when gain reduction is occurring.
Press the <Flat> button to clear and return all compressor/
limiter parameters to their default settings.
Figure 4.5: Compressor/Limiter Screen
Figure 4.4: Expander/Gate Screen
Figure 4.3: GEQ Graphic EQ Screen
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