Seeing The Whole Picture - Arturia CS-80 V User Manual

The CS-80 V offers six different waveforms on the Sub Oscillator; the extra waveforms
account for the fact that an LFO often needs more ways to control a signal than the
waveforms we listen to at higher frequencies. The waveforms include sine, sawtooth down,
sawtooth up, square, noise, and sample & hold (a randomly changing signal).

7.3. Seeing the whole picture...

Here's a diagram of a complete synthesis voice on the CS-80V.
Each of the two Channels (I and II) contains:
• 1 VCO with selectable sawtooth, square (with PWM), and sine wave outputs (the
sine wave bypasses the VCF)
• 1 noise source
• 1 mixer (mixing of the 2 VCO and the noise module towards the low-pass and
high-pass filters)
• 2 VCFs, a HPF followed by an LPF, with 1 envelope controlling the cutoff of both
• 2 VCAs, the first with 1 envelope controlling the loudness and the second
modulated by touch response
• 1 LFO (used for PWM)
The common voice structure (both Channels mixed) shares two more elements:
• 1 ring modulator
• 1 LFO (the Sub Oscillator)
Put it all together and you have a synthesis architecture with the potential for some pretty
amazing sounds!
120
A complete CS-80 synthesis voice
Arturia - User Manual CS-80 V - The Basics of Subtractive Synthesis