Chapter 11: Reference Section 185
Z-PLANE FILTER DESCRIPTIONS
F062 Deep Combs
This filter can provide a tremendous variety of comb-filtering and
filter sweep effects. Higher frequencies are sharply attenuated with
Frequency Tracking and Transform 2 set to low values, so be sure
at least one of these is either set in the mid- to high-range, or that
a modulator is used to offset.
Morph: Positive modulation moves frequency notches towards
lower values.
Freq. Tracking: Positive modulation moves frequency notches
towards lower values.
Transform 2: Positive modulation moves frequency notches
towards lower values.
F063 One Peak
Morph: Try setting Transform 2 to 255 for increased brightness
over morph range. Sweeps from a slight peak at 220Hz and roll-off
after 650Hz to a series of even peaks at 220,440, 880Hz, and a
smaller odd series at 330, 555 and 770Hz.
Freq. Tracking: Tracks filter to keyboard.
Transform 2: Increases the effect of Morph and provides velocity
sensing.
F064 More Peaks
Morph: Try setting Transform 2 to 255. Moves from a low cut-off
flat frame to a series of peaks at 220, 440, 880, 330, 1000 and
2000Hz.
Freq. Tracking: Tracks keyboard.
Transform 2: Intensifies effect and controls volume.
F065 Rev Peaks
Morph: Try setting Transform 2 to 255. Moves from flat with a
low-frequency cut-off to a series of peaks at 220, 440, 660, 880,
1100 and 1320.
Freq. Tracking: Tracks keyboard with notches three octaves higher.
Transform 2: Contains higher gain peaks at same frequencies as
Morph axis for volume control and deeper effect.
F066 Notcher 2.4
Frames 1 and 3 contain multiple, unevenly spaced notches and
peaks, while frames 2 and 4 are essentially flat. Modulating up-
ward along the Morph axis, pushes the filter towards flat. Modu-
lating Frequency Tracking upwards tends to give the source
material a bit rounder, more ‘open’ sound.
Morph: Sweeping over a narrow range with a quick LFO produces
some nice rotating speaker effects.
Freq. Tracking: Can be used to tune the filter.
Transform 2: Not used.
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