INSTRUo Cruïnn Analog Stereo Oscillator Plus Expander User Guide
- June 3, 2024
- INSTRUO
Table of Contents
INSTRUo Cruïnn Analog Stereo Oscillator Plus Expander
Signal Flow
The Rate knob controls the rate of the five triangle waveform LFOs used for phase modulation of the five phase-displaced sawtooth variants. The Depth knob controls the depth of phase modulation applied to the five phase-displaced sawtooth variants by the five triangle waveform LFOs.
To eliminate any chance of hard clipping that may occur when parallel sawtooth waves sum with perfect phase alignment, a soft clipping circuit is implemented and limits the amplitude range to ~10Vpp. This essentially turns the built-in VCA into a voltage-controlled saturator that can accentuate a nonlinearity of the sawtooth waveforms.
CV Expander
Included with the cruïnn is a CV expander, which is connected to the module via two ribbon cables. The expander allows for discrete access to the core sawtooth waveform, as well as the five parallel phase-displaced sawtooth waveform variants.
Note: Negative voltage will displace the phase forward from the core waveform and positive voltage will displace the phase backward in time from core waveform.