Page 2
Contents Description / Features Installation / Specifications Overview Low Frequency Oscillators Patch Examples - Feedback Waveshaped LFOs - LFO Stall / Track & Hold - Granular Drifter...
Page 3
Description Designed in collaboration with Ben “DivKid” Wilson, the Instruō øchd packs 8 all analogue LFO’s into a convenient 4HP package. Each independent core is free running with rates configured from fastest to slowest arranged from top to bottom. Each frequency range was tuned by ear during development to give the optimum spread of control frequencies running in parallel.
Installation 1. Confirm that the Eurorack synthesizer system is powered off. 2. Locate 4 HP of space in your Eurorack synthesizer case. 3. Connect the 10 pin side of the IDC power cable to the 2x5 pin header on the back of the module, confirming that the red stripe on the power cable is connected to -12V.
Page 5
øchd | pronoun (plural in construction) something having eight units or members, amounting to eight in number, a set of this many things. RATE – LFO Outputs øchd 1. Rate 2. Rate CV Input 3. Rate Attenuverter 4. LFO Outputs...
Low Frequency Oscillators Rate: Rate knob is a global parameter that sets the frequency of all eight LFOs. • When the knob is fully clockwise, each individual LFO will be at the top of its range. 1, which is the fastest LFO, can go up to 160Hz without external control voltage applied.
Page 7
Rate CV Input: Rate CV Input is a bipolar control voltage input for Rate parameter. • Control voltage is summed with the knob position and scaled and/ Rate Attenuverter. or inverted by the • Applying positive control voltage can force the frequency of each Rate individual LFO to exceed the range accessible by the knob.
Patch Examples Feedback Waveshaped LFOs: Summary: LFO Outputs Rate CV Input Connect any of the to the Rate Attenuverter. scale the amount of modulation with the CV Input CV Input CV Input CV Input CV Input CV Input...
Page 9
LFO Stall/Track & Hold: Summary: Connect a gate signal to the Rate CV Input and turn the Rate Attenuverter fully anticlockwise so that it inverts the gate signal. The LFOs will all stall at their current voltage level. This is essentially a track and hold function, as it tracks the LFO voltage and then holds it in time.
Page 10
Granular Drifter: Summary: Connect the LFO Outputs to any of the CV inputs on arbhar. Audio Signal Output Manual Author: Collin Russell Manual Design: Dominic D’Sylva This device meets the requirements of the following standards: EN55032, EN55103-2, EN61000-3-2, EN61000-3-3, EN6231 1.
Need help?
Do you have a question about the OCHD LFO and is the answer not in the manual?
Questions and answers