2009

Table Of Contents
Using the EVD6 Wah Wah Effect
The name wah wah comes from the sound it produces. It has been a popular effect (usually
a pedal effect) with electric guitarists since the days of Jimi Hendrix. The pedal controls
the cutoff frequency of a bandpass, lowpass, or—less commonly—highpass filter. Wah
wah pedals are also used extensively with the D6. The EVD6 offers simulations of several
classic wah wah effects, as well as some basic filter types.
Mode pop-up menu: Choose one of the following Wah Wah effect settings:
Off: Wah Wah effect is disabled.
ResoLP (Resonating Lowpass Filter): In this mode, the Wah Wah will work as a
resonance-capable lowpass filter. At the minimum pedal position, only low frequencies
can pass.
ResoHP (Resonating Highpass Filter): In this mode, the Wah Wah will work as a
resonance-capable highpass filter. At the maximum pedal position, only high
frequencies can pass.
Peak: In this mode, the Wah Wah will work as a peak (bell) filter. Frequencies close
to the cutoff frequency will be emphasized.
CryB: This setting mimics the sound of the popular Cry Baby wah wah pedal.
Morley 1: This setting mimics the sound of a popular wah wah pedal, manufactured
by Morley. It features a slight peak characteristic.
Morley 2: This setting mimics the sound of the Morley distortion wah wah pedal. It
has a constant Q(uality) Factor setting.
Range knob: Determines the cutoff frequency of the filter. With Range set to the left,
any cutoff modulation will occur in a narrow frequency range. To provide a wider
control range, turn the Range knob to the right.
Envelope knob: Determines the sensitivity of the (filter) envelope to incoming note
velocity messages. An auto wah effect is produced by using the built-in envelope
follower function, which controls the depth of filter cutoff modulation. In practical
terms, this means that the dynamics of your performance directly control the depth of
the Wah Wah filter modulation.
197Chapter 8 EVD6