54
The Editor View
Q
knob is used to adjust the so-called quality factor of the filter which controls the width of the
frequency band on which the filter is active. In its leftmost position, the frequency band is wide
and it gets narrower as the knob is turned clockwise.
Figure 32: Peak filter.
The
Gain
knob is used to adjust the output level of this module. In its center position, the level
is left unchanged, it is decreased by turning the knob counter-clockwise and increased by turning
it clockwise.
5.4.2
Compressor
The
Compressor
module is used to automatically compress, in other words reduce, the dynam-
ics of a signal. This module receives two input signals. The first one is the signal to be compressed
while the second one is a control signal which triggers the compression process when it rises above
a given level.
Tuning
The level at which the
Compressor
starts to enter into action is determined by the value of the
Threshold
parameter. This value is in dB and corresponds to the amplitude of the input signal as
monitored by the first level meter of the module.
The amount of compression applied to the part of the signal exceeding the threshold value
depends on the
Ratio
parameter which varies between value of 1:1 and 1:16. This parameter
represents the ratio, in dB, between the portion of the output signal from the compressor above
