Operation Manual

5.3 The FX View 37
module. The filtering effect is different however, since the Phaser module only introduces rejection
around a limited number of frequencies which, in addition, are not in an harmonic relationship.
0 dB
Amp
Frequency
Light effect (mix=0.1)
Medium effect (mix=0.25)
Strong effect (mix=0.5)
250 Hz 2435 Hz
Figure 19: Frequency response of a Phaser module. Effect of the mix between wet and dry signal
on the frequency response.
Tuning
The location of the first notch in the frequency response of the module is adjusted with the Fre-
quency knob This frequency can be modulated by an amount controlled with the Depth knob. In its
leftmost position, the location of the first notch is fixed but it starts to oscillate by an amount which
increases as the Depth knob is turned clockwise. The frequency of the modulation is controlled
using the the Rate knob. The feedback knob is used to fix the amount of wet signal re-injected into
the delay. Finally, the Mix knob determines the amount of dry and wet signal sent to the output.
When this knob is adjusted in the left position, only dry signal is sent to the output, in its center
position, there is an equal amount of dry and wet signal in the output and in the right position, only
wet signal is sent to the output.
5.3.8 Wah
The Multi-Effect module includes 2 different types
of Wah effects: wah wah, and auto wah. These effects
are used to enhance a frequency band around a varying
center frequency using a bandpass filter. In the wah wah
effect, the center frequency of the bandpass filter varies at a rate fixed by the user. In the case of