User Manual

4.12. Filters
Steiner Filter (VCF 1) and Ladder Filter (VCF 2)
Filters remove frequencies from the sound sources coming from the Mixer see Mixer Section
[p.28], and they are a primary component in the subtractive synthesis technique used by the
MatrixBrute and all analog synths. Modulating them varies the timbre of the sound over time.
With very high Resonance levels they can self-oscillate, becoming another sound source.
MatrixBrute features two multimode Voltage-Controlled Filters (VCFs):
• The Steiner Filter (VCF 1) was designed by Nyle Steiner in the '70s. It has a
unique character that becomes apparent immediately at relatively pronounced
settings.
• The Ladder Filter (VCF 2) is the other classic filter, a famous standard-bearing
design known for its rich, thick sound; unlike the original, this one is gain-
compensated to avoid the dip in volume that you find at higher resonance level.
This one also is a multimode filter and has both 12dB per octave and 24dB per
octave options. These filters play a big role in the MatrixBrute's character.
Both filters have the same basic parameters, but the Steiner Filter has a couple of additional
ones.
The central parameter in a filter is the corner frequency or frequencies where it starts
cutting. This is called Cutoff in synths. Maxibrute has two places to adjust this:
Arturia - User Manual MatrixBrute - Operation 30