NONLINEAR LABS C15 - 4.12 Setup Navigation

Sound Generation
34
Hi Cut:
▶
Press Hi Cut (Comb Filter).
▶
Sweep the Encoder across the entire range and play notes. Then dial in a
value of [ 110.00 st ].
ߊ The signal path of the Comb Filter features a lowpass filter that atten-
uates high frequencies. At maximum value (140.00 st), the lowpass will
be opened completely with no frequencies attenuated, yielding a very
bright sound. Decreasing the value gradually, the lowpass is producing
an increasingly muled sound with quickly decaying treble frequencies.
These settings are very useful for emulating e.g. plucked strings.
Gate:
▶
Press Decay (Comb Filter) until Gate is highlighted in the display.
▶
Sweep the Encoder across the entire range. Play some notes and dial in
[ 60.0 % ].
ߊ This parameter controls to what extent a gate signal reduces the Decay
time of the Comb Filter as soon as a key is released. When disabled (0.0
%), the Decay will be the same throughout, no matter whether a key is
depressed or released. Particularly in combination with Key Tracking, this
also allows for very natural-sounding results, e. g. think of the behaviour
of a piano keyboard.
AP Tune:
▶
Press AP Tune (Comb Filter).
▶
Slowly sweep the Encoder from its maximum to its minimum value while
repeating the middle “C” on the keyboard. Then dial in [ 100.0 st ].
ߊ This parameter enables an allpass filter in the signal path of the Comb
Filter. Usually (without the allpass filter), the delay time is the same for all
passing frequencies. All the overtones generated (resp. their multiples)
fit perfectly into the delay time range dialled in. But within resonant
bodies of acoustic instruments, things are a bit more complex since the
delay times change with frequency. This eect is emulated by the allpass
filter. The overtones generated by the feedback loop are detuned against
each other by the allpass which produces specific inharmonic sonic
components. The lower the allpass filter is tuned, the more overtones are
aected, and the timbral variations increase. This eect is audible e. g. in