User's Manual

60 The Editor View
The Freq knobs is used to control the central frequency of the filter. Turning this knob clock-
wise increases the center frequency. The Depth knob controls the excursion of the center frequency
of the filter around its center frequency. Turning this knob clockwise increases the excursion of the
center frequency. Finally, the Rate knob controls the frequency or rate of the modulation of the
center frequency of the filter. Turning this knob clockwise increases the rate of the modulation.
Figure 35: Frequency response of a notch filter.
The Mix knob allows one to mix the dry and wet signals. In its leftmost position, there is no
output signal from the chorus and one only ears the dry input signals. In its rightmost position, one
only ears the wet signal from the chorus module. In its center position, there is an equal amount of
dry and wet signal in the output signal from the module. Finally, the Output know is used to adjust
the output level of this module.
5.4.10 Guitar Amplifier
The Guitar Amplifier module is a versatile 2-channel amplifier with speaker cabinet and spring
reverb. With relatively few parameters, this amplifier module allows one to obtain a rich variety of
sounds for different music styles.
The amplifier section of this module is switched on or off by clicking on the LED located in
the top right corner of the section labelled Amp on the left of the module. The Channel LED allows
one to switch between the two channels of the amplifier. Channel one offers clean to semi-dirty