McDSP Chrome Tone User Manual download pdf (Page 34)

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Page 11

McDSP Chrome Tone

A Closer Look at the Chrome Tone Wah

The Chrome Tone Wah is a full featured modulated lter, congured as a Wah

in default mode, and as a variety of other lters as per the 14 selectable types

available. The Wah, like the Tremolo and Chorus congurations, has a Dynamic

and Auto section for triggering modulation of the Wah lter (or Tremolo gain,

or Chorus delay length).

Wah Section

Controls the lter type,

frequency, and Q (resonance),

and overall modulation range.

The Wah controls are:

• Filter Type - the popup

under the ‘Wah’ text gives

14 lter options: 3 types of

band pass wah including the standard wah lter type found on many Wah

pedals, 3 high pass lters (12, 24, and 36 dB/oct), 3 low pass lters (12, 24,

and 36 dB/oct), 3 phasors (2, 4, and 6 stages), a wah plus low pass lter, a

high pass plus wah lter, and an experimental wah lter.

• Freq - the frequency of the selected lter type. From this value the

modulation of the frequency is initiated.

• Q -the resonance, or peak-emphasis, of the selected lter.

• Range - the overall modulation range from the Dynamic and Auto sections.

Using the Chrome Tone as a Wah, the wah-effect can be created in one of

three ways: 1) move the frequency control itself (manual wah); 2) modulate

the frequency control from a base setting with the Dynamic section (enveloped

wah); or 3) modulate the frequency control from a base setting with the Auto

section (auto wah). These three techniques can be extended to any of the other

lter types in the Wah conguration.

The Q, or resonance, control, provides emphasis at the selected frequency, or

at the currently modulated frequency. This can create lter effects commonly

associated with synthesizers. The selections, bandpass, low pass, and high pass

all come in 1/2/3 modes, corresponding to 12/24/36 dB per octave slopes. The

intensity of the resonance increases with steeper lter slopes.

Other unique lter modes combine the wah effect with low or high pass

ltering in series with it, and experimental lter types.

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McDSP Chrome Tone User Manual Page 34