Table of Contents
Advertisement
VOCAL FORMANTS
These filters are designed to simulate human vocal resonances. In these filters,
all axes control the movement between vowels. Each filter allows a slightly
different type of vowel shifting control.
F230
Vowel Space2
Imparts a different vowel color to the source at each corner of the cube. No
simple shifting of formant frequencies is accomplished by any of the three
filter controls. When Filt. Freq. Track and Transform 2 are at their minima,
Morph moves from 'oo' to 'oh', while when at their maxima, Morph moves
from 'ee' to 'ae.' Try all the combinations.
Morph: Sweeps from 'oo', 'er', 'ee', and 'uh' to 'oh', 'ah', 'ae', and 'eh',
respectively
Freq. Tracking: Shifts from 'oo' 'er', 'ah', and 'oh' to 'uh', 'ee', 'ae', and
'eh', respectively.
Transform 2: Shifts from 'oo', 'oh', 'eh', and 'uh' to 'er', 'ah', 'ae', and
'ee.'
F231
Vowel Space3
Imparts one of four vowel colors to the source when Transform 2 is at its
maximum. Morph moves from 'oo' to 'ee' when Filt. Freq. Track is at its
maximum, and moves from 'ah' to 'ae' when Filt. Freq. Track is at its
minimum. As the level of Transform 2 is reduced, all the vowel colors
regress towards the neutral "schwa" sound. Controlling Transform 2 with
velocity gives a natural vocal expression corresponding to increasing
"stress."
Morph: Sweeps from 'oo' and 'ee', to 'ah', and 'ae', respectively.
Freq. Tracking: Shifts from 'oo' and 'ah', to 'ee', and 'ae' respectively.
Transform 2 : Shifts from the neutral schwa to the above distinct vowel
colors.
F232
Oh Shaper
Based on the formants for the vowel 'O'. Best tracking is achieved with Key
to Freq. Track +127. Use the notch setting (Transform 2 between 000-127)
to track the keyboard and attenuate unwanted upper and lower formants in
pitch-shifted vocal samples. Use the peak setting (Transform 2 between
127-255) with no tracking to add formants. Sweep the Morph for some
interesting vocalizations.
Morph: Higher values increase bandwidth.
Freq. Tracking: Tunes the filter.
Transform 2: Low values produce notches, high values produce peaks.
Z-PLANE FILTER DESCRIPTIONS
Chapter 11: Reference Section
ah
ae
er
ee
oh
eh
oo
uh
Frk Trk
Vowel Space 2
ah
ae
oo
ee
eh
Frk Trk
Vowel Space 3
(Perceptual)
221
Advertisement
Table of Contents
