4. VOICE ARCHITECTURE
The PolyBrute has two types of sound sources: voltage-controlled oscillators (VCOs) and
a noise generator. Their levels are set by the Mixer, then they pass through one or both
filters before heading to the voltage-controlled amplifier (VCA). Each of those items can be
modulated by multiple sources, thanks to the Mod Matrix. It all adds up to the best set of
sound sculpting tools a synthesist could want.
♪
: The small orange circles near many of the knobs, sliders, and buttons mean there's a shortcut
to the underlying settings of those parameters. Hold [Settings] and activate that control, or hold one of
those buttons for about 1 second, and you'll be taken to a related page.
4.1. A note about tuning
Analog components tend to drift a bit, so you may need to auto-tune PolyBrute occasionally.
This helps to ensure per-voice consistency of pitch, keyboard tracking, envelope response,
etc.
We recommend that you let the circuits stabilize for 5-10 minutes after power-up. After that,
if it seems the VCO tuning or filter tracking could be tighter, you can run one or more of the
calibration routines. Navigate to Settings > Misc > Voice Auto-Tuning and then select options
1-3, depending on the desired target.
4.2. Morph basics
The morphing aspect of the PolyBrute is an essential part of its voice architecture. In a
nutshell, every patch is made up of two sounds (A and B), and PolyBrute can morph
seamlessly between them. The sonic metamorphoses can be subtle or profound.
Almost every section of this chapter applies equally to sounds A and B. Once you are
comfortable with the basics, try editing the patch with the Morph knob set all the way to
sound A, all the way to sound B, and in various positions between the two until the patch is
perfect.
For an in-depth look and the morphing features, see the
.
Arturia - User Manual PolyBrute - Voice Architecture
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Summary of Contents for PolyBrute
Page 1: ...USER MANUAL...
