Comb Parameter Editing - Intellijel CYLONYX Rainmaker User Manual

Comb Parameter editing
This section contains the main controls and parameter setting buttons for the comb effect.
PaTT+sloPe
● Displays the comb tap time pattern, the slope of the tap levels, and the number of taps.
When this button is first pressed, the selected pattern is highlighted. Turning the rotary encoder changes
the selection of the comb tap time pattern. There are 16 different tap time patterns: Uniform, Flat Middle,
Early Comb, Fibonacci, Flat Comb, Late Comb, Rev. Fibonacci, Ess Comb, Rand Uniform, Rand Middle, Rand
Early, Rand Fibonacci, Rand Flat, Rand Late, Rend Rev. Fib, and Rand Ess. The latter 8 patterns are perturbed
versions of the first 8 patterns. The relative tap timings in the 16 patterns are shown in the figure below.
UNifORM
fLAT MiDDLe
eARLY COMB
fiBONACCi
fLAT COMB
LATe COMB
Rev. fiBONACCi
ess COMB
RAND UNifORM
RAND MiDDLe
RAND eARLY
RAND fiBONACCi
RAND fLAT
RAND LATe
RAND Rev. fiB.
RAND ess
Figure 8. The 16 different comb tap time patterns.
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Pressing the PATT+SLOPE button a second time will highlight the Slope parameter, and turning the rotary
{
encode will change the slope pattern to either Flat, Rising, Falling, or Rise/Fall. The slope patterns alter
the relative amplitude or level of the tap signals before they are summed. At large comb sizes this is useful
for creating crescendos, swells, or decaying sounds. At short comb sizes the different slope patterns give
different timbres to the resonant sound.
siZe moD : WaVe
●
Displays the waveshape, level, and rate of the rhythm delay time modulation LFO (low-
frequency oscillator). Turning the rotary encoder will change the shape of the modulating waveform. Possible
settings are : OFF (no modulation), Sinusoid, Triangle, Vibrato 1, Vibrato 2 (a faster vibrato), Down Chirp (a
sinewave with decaying frequency), Up Chirp (a sinewave with increasing frequency), Random.
siZe moD : leVel
● Displays the waveshape, level, and rate of the rhythm delay time modulation LFO.
Turning the rotary encoder will change the amount of modulation applied to the tap delay times. The Level
setting ranges from 0 (no modulation) to 15 (time modulation of 10 msec in amplitude).
siZe moD : raTe
●
Displays the waveshape, level, and rate of the rhythm delay time modulation LFO.
Turning the rotary encoder varies the period or rate of the modulation LFO. Rate values are displayed in Hertz
(Hz). Pushing on the encoder while rotating it will change the Rate value in larger increments, to speed up
going from one rate setting to another.
TaPs+Fb
●
Displays the comb tap time pattern, the slope of the tap levels, and the number of taps. When this
button is first pressed, the #Taps parameter is highlighted, and turning the rotary encoder will change the
number of taps. This parameter defines the number of taps being summed to provide the comb output and
ranges from 1 to 64. As the #Taps value is reduced from 64, taps will drop out of the sum being sent to the
output. This dropping of taps is done in a way which makes the distribution of taps as uniform as possible.
The order of taps dropping out is shown in the figure below. Tap 64 is always sent to the output.
64
63
62
61
60
59
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56
55
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53
52
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50
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48
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2
1
Figure 9. The comb taps included (black squares) in the comb output sum as a function of the number of taps (decreasing
from top to bottom from 64 down to 1)..
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