Chapter 11: Reference Section 209
F190 Bonk>CO
A series of highly resonant peaks alternating with notches are
spaced at intervals of about an octave. The Morph Offset param-
eter is used to control ‘Q’ — modulating the Morph Offset upward
causes the curve to flatten out. Frequency Tracking can be used to
tune the peaks/notches; higher values move the peaks/notches
into higher frequency ranges. Transform 2 also tunes the filter, but
higher values cause the notches to move down in frequency,
slightly. The overall effect of the filter can be very vocal, depend-
ing on the source material.
Morph: Controls resonance.
Freq. Tracking: Tunes the filter.
Transform 2: Subtly tunes the filter.
F191 Speaker
Groups of unevenly spaced bumps and dips in the frequency
spectrum are used to simulate a number of speaker cabinet re-
sponses. Use Morph Offset, Frequency Tracking, and Transform 2
to vary the tuning and depth of the bumps and dips to simulate
different speaker cabinet types.
All Axes: Vary center frequency and amount of boost/cut for the
various filter bands.
F192 Expander
Frequency Tracking and Transform 2 provide a range of fairly
broad-band boosts and cuts at various frequencies, with higher
values generally providing thinner, brighter sounds. These can be
used to add a measure of expressiveness to the source material —
route ‘Key’ to control Frequency Tracking, for example, and ‘Vel’
to control Transform 2. Increasing the value for Morph Offset has
the effect of flattening the curve, providing you with a filter depth
control.
Morph: Use to control filter depth.
Freq. Tracking: Higher values produce thinner, brighter sounds.
Transform 2: Higher values produce thinner, brighter sounds.
F193 Separator
This filter features three inharmonically related resonant peaks,
which can be swept via the Morph parameter, producing a metal-
lic set of overtones. Applied to the noise waves, this can sound like
whistling wind; applied to pitch sounds, it can produce anything
from hollow, metallic resonances to accentuated high-frequency
attack transients.
Morph: Use to sweep the resonant peaks.
Freq. Tracking: Tunes the filter.
Transform 2: Controls filter resonance.
Z-PLANE FILTER DESCRIPTIONS
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