11
Interpole
Cutoff Frequency
The cutoff frequency is the frequency
above which the spectrum is attenuated
(overtones are cut). Set the frequency
manually here.
Resonance
Resonance results from coupling the filter
output with the input such that frequencies
surrounding the cutoff frequency are
reinforced. At full resonance the filter
oscillates producing a sine wave at the
adjusted cutoff frequency. This oscillation
occurs even if there is no input signal, so
the filter can also be used as a signal
source.
VCA
The ”voltage-controlled” amplifier (VCA) is
the last unit in Interpole’s processing chain.
The VCA follows immediately after the
filter, and is controlled by the envelope and
the LFO. Envelope control is optional to
allow the LFO to perform alone as a
tremolo or autopan.
VCA In/Out
Switches modulation of the amplifier by the
envelope section on or off. In the
In position,
the envelope is active. If the envelope is
in Envelope Follower mode, the intensity
of the modulation is controlled by
Sensitivity. With the envelope in ADSR
mode the modulation is always at
maximum. In the
Out position envelope
control is disabled, although the amplifier
can still be modulated by the LFO.
