♪
: The Steiner filter tracks the keyboard fairly well, but the Ladder filter tracks the keyboard more
accurately. This distinction is important when using a self-oscillating filter as a third oscillator.
4.6.2.1. Brute Factor
Brute Factor is a proprietary filter feedback circuit that does everything from warming up
the low end to creating a monstrous growl. The exact effect depends on its interaction with
other settings: Mixer levels, cutoff, resonance, etc.
4.6.3. VCF 2 (Ladder)
VCF 2 is similar in design to the most well-known ladder filter on this planet. But unlike
the original, VCF 2 is
gain-compensated to prevent the reduction of lower frequencies that
accompanies higher resonance levels.
All of the controls in this module were described in the
Shared features section [p.29]
except
for this one:
4.6.3.1. Disto
Disto is short for "distortion". This adjusts the output of the Ladder filter into its VCA (the Level
control). The harder it hits its VCA, the more distortion you'll hear.
4.7. Filter FM
Two of the PolyBrute sound sources have hardwired modulation routes to the filters.
4.7.1. VCO 2 > VCF 1
This knob allows VCO 2 to modulate VCF 1. Try various tunings, wave shapes, the sub-
oscillator, and different settings for cutoff and resonance, etc. This can coax the most
delicious results from the Steiner filter!
4.7.2. Noise > VCF 2
This knob routes the Noise oscillator to VCF 2. The
determines the
frequency content of the Noise generator, and thus controls the character of the modulation
fed to VCF 2. Again, try various levels for cutoff and resonance, etc. The more extreme
settings are not for the fainthearted!
Arturia - User Manual PolyBrute - Voice Architecture
31
Summary of Contents for PolyBrute
Page 1: ...USER MANUAL...
