10
Interpole
Link
Link Normal/Invert
When Link is enabled (see below), the
right channel’s LFO signal is derived from
the left channel’s signal.
Invert produces
interesting stereo effects by inverting the
phase of the right channel. The effect
ranges from simple Autopan to more
complex stereo effects through filter
modulation. Left and right channel link must
be enabled (see next section).
Link In/Out
When Link is enabled (In) the left channel
is switched to the right, making the handling
of stereo signals easy and the production
of interesting stereo effects possible.
Filter
The filter is included in the signal processing chain along with the envelope generator
and the LFO. The filter is a 24dB/octave lowpass type also known as a cascading filter.
Frequencies below the cutoff remain unprocessed (hence the designation ”lowpass”
filter). Frequencies above the cutoff frequency are attenuated at a rate of 24dB/octave.
Not much needs to be said about the renowned original version of this filter, other than
it is generally considered to be one of the best sounding filters ever to be implemented
in a synthesizer. And now, in Interpole. The filter also provides the characteristic
drive
parameter whereby it can be intentionally be coaxed into over-modulation.
Drive
Controls the filter’s input level. Higher
values produce more distortion.
Env Sweep
Controls the influence of the envelope over
the cutoff frequency. The cutoff follows the
envelope curve to produce dynamic filter
effects. The beginning and end points of
the curve produce the cutoff frequency as
set in the
Cutoff Frequency field. Both po-
sitive and negative modulation is possible.
