E-Mu Ultraproteus Operation Manual page 215

Z-PLANE FILTER DESCRIPTIONS
194
F088 BrassSwell
Similar to a lowpass filter, but multiple resonant peaks give this one a bit of
a vocal, phase-shifter-like quality.
Morph: Use to sweep the filter.
Freq. Tracking: Tunes the filter.
Transform 2: Higher values add midrange "beef" and resonance.
F089 BrsSwell2.4
An emulation of a lowpass filter with low resonance designed for brass-type
filter sweeps.
Morph: Moves the cutoff frequency higher, and adds a gentle bump in
the upper-midrange.
Freq. Tracking: Adds a bit of resonance at the cutoff point, which
becomes flatter as the filter is morphed upward.
Transform 2: Not used.
F090 LoVelTrum
A series of tightly spaced peaks is swept upward by each of the filter trans-
forms, with the brightest sounds obtained at maximum settings for Morph
Offset, Frequency Tracking, and Transform 2. In addition, Transform 2
increases the resonance.
Morph and Freq. Tracking: Sweeps the peaks.
Transform 2: Tunes the peaks and increases resonance.
F091 Chiffin.4
Morph: Sweeps between low frequency notches.
Freq. Tracking: Allows the notches to track the keyboard.
Transform 2: Not used.
Comments: Use with noise to create a chiff sound on wind instruments.
F092 ShakuFilter
Morph: Sweeps between peaks at 400Hz, 1600Hz, 2700Hz and 3150Hz
with roll-off after 30kHz to a mostly flat response with a slight bump
at 1900Hz.
Freq. Tracking: Keyboard tracking.
Transform 2: Controls tone and depth.
F093 Cym
Morph: Sweeps from peaks at 100Hz, 300Hz, 400Hz, 600Hz, 900Hz and
1500Hz to peaks at 200Hz, 600Hz, 800Hz, etc.
Freq. Tracking: Keyboard tracking.
Transform 2: Deepens the effect.
Comments: Designed to make interesting cymbal sounds. Both Morph
and Frequency Tracking manipulate frequency sweeps.
UltraProteus Operation Manual