Nekyia Circuits Ozark
CV/Trigger Polyrhythmic Generator
6 HP Eurorack module
Ozark is a compact polyrhythmic CV and trigger sequencer combining a selectable 3-, 4-, or 5-step analog CV sequencer, internal or external clocking, two clock dividers, and XOR/OR logic.
Features
- Selectable 3-, 4-, or 5-step analog CV sequencing.
- Five step controls independently set output levels from 0 to 5 V.
- Three trigger outputs provide the two divided clocks and the selected XOR/OR result; a separate output provides sequencer CV.
- Operates from its internal clock or an external clock.
- The internal clock rate spans approximately 10 to 1000 BPM.
- Divider 1 offers divisions of 1, 2, 3, 4, 5, 6, 7, 8, 12, 14, and 16.
- Divider 2 offers divisions of 1, 2, 3, 4, 5, 6, 7, 8, 11, 13, and 15.
- Advance Input accepts external triggers and can run the CV sequencer independently from the dividers and logic.
- The sequencer can be reset to step 1 manually or by applying more than 3 V to Reset Input.
- The CV sequencer is unquantized.
- CV Output can modulate parameters such as filter cutoff or oscillator timbre, not only pitch.
- Divider outputs can trigger or reset envelopes, LFOs, and other clocked modules to create rhythmically dependent patches.
Controls & Jacks (27)
- Step 2 Indicator
- Divider 1 Division— Sets Clock Divider 1 to divide the master clock by 1, 2, 3, 4, 5, 6, 7, 8, 12, 14, or 16.
- Step 3 Indicator
- Clock Rate— Sets the internal clock speed from approximately 10 to 1000 BPM.
- Divider 2 Division— Sets Clock Divider 2 to divide the master clock by 1, 2, 3, 4, 5, 6, 7, 8, 11, 13, or 15.
- Step 5 CV— Sets the step 5 output level from 0 to 5 V.
- Step 4 CV— Sets the step 4 output level from 0 to 5 V.
- Step 5 Indicator
- Step 2 CV— Sets the step 2 output level from 0 to 5 V.
- Advance Input— Advances the CV sequencer from external triggers; a sustained external gate can hold the sequencer on its current step.
- Clock Input— Accepts an external clock in place of the internal clock generator.
- Step 1 CV— Sets the step 1 output level from 0 to 5 V.
- Step 1 Indicator
- Reset— Manually resets the CV sequencer to step 1.
- Logic Activity— Indicates pulses produced by the selected XOR or OR logic operation.
- CV Output— Outputs the active sequencer step's unquantized 0–5 V control voltage.
- Step 3 CV— Sets the step 3 output level from 0 to 5 V.
- Step Count— Selects a sequence length of 3 steps, 5 steps in the middle position, or 4 steps.
- Logic Output— Outputs the 5 V XOR or OR trigger result selected by the Sequencer Clock Logic switch.
- Internal Clock Activity— Flashes at the internal clock rate.
- Divider 2 Output— Outputs a 5 V trigger at the rhythm selected by Clock Divider 2.
- Divider 1 Output— Outputs a 5 V trigger at the rhythm selected by Clock Divider 1.
- Logic Mode— Selects OR or XOR processing of the divider clocks to advance the sequencer; the center position disables logic clocking, leaving Advance In
- Divider 2 Activity— Indicates pulses produced by Clock Divider 2.
- Reset Input— Resets the sequencer to step 1 when a voltage above 3 V is received.
- Step 4 Indicator
- Divider 1 Activity— Indicates pulses produced by Clock Divider 1.
How-To Guides
- Classic Polyrhythmic Voice
- Run the Sequencer Independently
- Create Envelope-Controlled Step Holds
- Pair Ozark with Ceremony
Explore the interactive Ozark panel on BleepDex — tap any control to learn what it does.