Audio Mod - Arturia MatrixBrute User Manual

The definition of noise is a random waveform, so it's unpitched. The MatrixBrute
offers four noise types, and the difference is in their frequency spectrum.
As a practical description, blue noise has the most energy in the high frequencies
and least in the low ones, then white sounds a little lower, followed by pink, and
finally red sounds the lowest. Noise can be an important component of a sound,
adding some grit, or it can be used to modulate another wave.
Noise Type selects the four types successively, and each one has an
appropriately colored light.

4.4. Audio Mod

In addition to making sounds, the VCOs can modulate other VCOs and the
two VCFs (Voltage-Controlled Filters). These will create more character and add
harmonics to the sound of the modulation destination.
When the VCOs modulate other VCOs, it's called Frequency Modulation - FM.
• VCO 1 > VCO 2 adjusts how much VCO 1 modulates VCO 2.
• VCO 1 < VCO 3 > VCO 2 lets VCO 3 modulate VCO 1 or 2. It modulates
neither when the knob hits its center detent.
• VCF 1 < VCO 3 > VCF 2 lets VCO 3 modulate VCF 1 or 2. It modulates
neither filter when the knob is in its center detent.
• VCO 1 < Noise > VCF 1 lets the Noise oscillator modulate VCO 1 or VCF 1.
Again, it does neither when the knob is centered in the detent.
For the bi-polar knobs to be used in the modulation matrix, you will need to turn
the knob in the direction that you want it to modulate when assigning it. There is
a small dead zone on either side of the center detent that will allow you to have
no modulation but still allow the knob position to be sensed.
22 Arturia - MatrixBrute Manual - Operation