User Manual

• Cutoff sets the corner frequency/frequencies individually for each filter. These
are then fed to a combined control:
• Master Cutoff is a prominent knob that sweeps both filters' cutoffs together.
The word "multimode" means the filter can adopt different curves, which also change the
sound completely.
Mode selects these curves:
• LP (Lowpass) does just that - allow low frequencies to pass while high
frequencies are attenuated.
• BP (Bandpass) allows a band of frequencies to pass while blocking everything
else. Another way to look at it is that the treble and bass are turned down, leaving
a midrange band.
• HP (Highpass) allows high frequencies to pass while low frequencies are
blocked.
• Notch (Steiner/Parker filter only) removes a narrow band of frequencies.
The slope of the filter's roll-off changes the sharpness of the sound.
• Slope selects either the 12dB or 24dB per octave setting. Usually 12dB sounds
brighter.
• Drive adjusts how hard the signal hits the filter. The higher you set it, the more
pleasant distortion you get.
• Brute Factor™ is Arturia secret sauce. It ranges from warming up the low end to
creating a monstrous growl when turned up. The exact effect depends on how
it's interacting with other settings.
• Resonance emphasizes the frequencies at the point of the cutoff, because they're
fed back into the circuit. Higher resonance levels can cause the filters to self-
oscillate. NOTE: The Steiner filter does not track the keyboard well over a wide
range by nature. For better pitch to octave tracking, using the Ladder filter.
• Env 1 Amt sets how much Envelope 1 (the one dedicated to the VCFs) modulates
the Cutoff frequency. This control allows for both positive and negative
modulation amounts.
• Routing chooses between the two filters running in parallel or having VCF 1 feed
VCF 2. This unique control allows you to alter the voice path and create a wealth
of new sounds.
31 Arturia - User Manual MatrixBrute - Operation