E-Mu Ultraproteus Operation Manual page 206

F040 Vow>Vow2
Morph: Sweeps between 'ee' and 'oh'.
Freq. Tracking: Provides key tracking to fix partials.
Transform 2: Provides volume and brightness control with velocity
and/or key position.
Comments: Morphing sweeps between vowels- slight 'E' effect.
F041 YahYahs.4
Morph: Sweeps between 'eeya' and 'aa'.
Freq. Tracking: Introduces frequencies two octaves higher for key
tracking and brightness control.
Transform 2: Not used.
F042 YoYo.4
Morph: Sweeps between 'ee' and 'oh' sounds.
Freq. Tracking: Introduces frequencies two octaves higher for key
tracking and brightness control.
Transform 2: Not used.
F043 VowelSpace
Dr. William Martens developed this filter cube, which allows any vowel to
be approximated with only two parameters.
Morph: Sweeps the first formant of the vowel from 150Hz up to
850Hz.
Freq. Tracking: Sweeps the second formant from 500Hz up to 2500Hz.
Transform 2: Changes the vowel "stress." Low stress means that all of
the vowel frequencies collapse to a relaxed "schwa" sound. Maximum
Transform produces the maximum excursion (stress) for all of the
vowel frequencies.
STANDARD
These filters are variations on traditional 2 and 4-pole filter models
F044 BrickWaLP.4
This filter features an extreme rolloff at the cutoff point, which moves from
100Hz to 3000Hz. Use this filter to produce low-resonance filter sweeps, or
to selectively filter out high frequencies in the source sound.
Morph: Controls filter cutoff.
Freq. Tracking: Controls filter depth and provides gentler roll-off
beginning ≈3000Hz.
Transform 2: Not used.
Z-PLANE FILTER DESCRIPTIONS
A "BRICKWALL" FILTER IS ONE
WITH AN EXTREMELY STEEP
SLOPE.
Chapter 11: Reference Section 185