Filter - Panda-Audio Future Impact v3 User Manual

FILTER

The rightmost four sliders in the filter section adjust the depth of control signals which
modulate the filter's cutoff frequency. The remaining sliders and buttons adjust the filter's
character and behavior.
Moving from left to right, the sliders (or pushbutton switches, where indicated) in this section
are as follows:
● VCF FILTER MODE ​ P USHBUTTON ​ ( VINTAGE/NEW):
Toggles between two slightly different control curves for the VCF. Whereas the Deep
Impact had an inaccurate approximation of the necessary exponential filter control
characteristic, the Future Impact has a perfect implementation. However, in order to
faithfully reproduce the Deep Impact sounds it was necessary to emulate the
imperfection of its filter. Therefore, in the Deep Impact emula​ t ion sounds (programs
21-29 of the default set) the VCF switch is set to VINTAGE. Since the accessible
frequency range in the two modes is not the same, the frequency slider will be reset
to the minimum whenever you toggle between modes.
● VCF FILTER SLOPE ​ P USHBUTTON ​ ( 12 dB / 24 dB): ​ T oggles the filter mode
between 12 dB/octave and 24 dB/octave. This adjusts how drastically the
frequencies around the filter's cutoff point are attenuated. 24 dB is the more drastic.
● VCF FRQ (0...80 (VINTAGE), 36...122 (NEW)):
Adjusts the cutoff frequency of the filter. Depending on the filter type selected (see
VCF TYPE below), the frequencies above, below or at this point will be attenuated.
○ In VINTAGE mode the scaling of this parameter is roughly 10 units per
octave.
○ In NEW mode, the slider's value actually displays MIDI note numbers. The
filter's cutoff frequency is therefore that of whichever MIDI note is currently
shown. (MIDI note 36 is 65.41 Hz; MIDI note 122 is 9397.27 Hz.)
The cutoff of the filter can be controlled in real time using either MIDI CC11 or CC74.
It can be made to deviate ±1, ±2 or ±4 octaves from the cutoff value set by the VCF
FRQ slider in the program. The range is set by ​ V CF CONTROL RANGE​ in the ​
menu​ .
● BPF FRQ (OFF, 1...24):​ Sets the cutoff frequency of the parallel second
(bandpass-only) filter, measured as an offset in semitones from the cutoff frequency
of the first filter. OFF bypasses the second filter.
Both filters share the resonance parameter and cutoff control signals and respond
equally to them.
Offsetting the cutoffs of the two filters creates dual resonant peaks and provides an
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