Compressor
A compressor is used to increase sustain, and even out the volume dynamics in guitar
signal. A compressor sets boundaries for a signal’s strength. When a signal exceeds
the set boundary, it is forced back into the set boundary. As the signal fades to a point
where it no longer exceeds the boundary, the compressor expands the signal strength
and increases sustain. The compression parameters are as follows:
Comp On/Off
The STATUS button turns the Compressor (Compress) on and off.
Attack
KNOB 1 adjusts the length of time it takes for the Compressor to respond to a
signal exceeding the Threshold. Values include:
fast, meDIUM, and slOw.
Ratio
KNOB 2 adjusts the input to output ratio once the Threshold has been exceeded.
For instance, a Ratio of 4 to 1 means that a signal exceeding the Threshold by 4
dB will only be allowed 1 dB of increased output. Higher settings yield a tighter
sound and increase sustain. Lower settings allow better dynamics. Ratio settings
are: 1.2:1 (
¡2-1), 1.5:1 (¡5-1), 1.8:1 (¡8-1), 2:1 (2-1), 2.5:1 (2.5-1), 3:1 (£0-
1), 4:1 (¢0-1), 5:1 (∞0-1), 8:1 (•0-1), 10:1 (10-1), 20:1 (20-1), and Infinity:1
(INFnty-1).
Threshold
KNOB 3 selects the Threshold (threshld). The Threshold is the level a signal
must reach before the compressor begins to work. Low Threshold settings
activate the compressor with weaker signals. Higher settings require a stronger
signal to activate compression. Ranges from 0 to
99.
Gain
KNOB 4 adjusts the Output Gain (CMP Gain) from the Compressor. This
parameter is used to balance the level of the Compressor to reach unity gain.
Other effects can clip if the Compressor Gain too high. Ranges from
0 to 20
(dB).
Knob 5
No function when the Compressor is selected.
52
Effects and Parameters
GNX3000 Owner’s Manual
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