Divkid - Øchd Expander

Sixteen derived modulations that reinterpret Øchd’s LFOs

The Øchd Expander extends the original module with sixteen additional outputs, all generated directly from Øchd’s eight triangle LFOs. Nothing runs independently here. Every signal follows the same global rate, keeping the expanded modulation set coherent and tightly related.

The expander divides into four functional sections, each offering a different way to reshape and combine Øchd’s motion. The top section outputs full wave rectified versions of LFOs 1, 3, 5, and 7. These unipolar signals flip the negative half of each wave upward, creating double speed triangle movement that works well for envelopes, VCAs, and positive only modulation paths.

Below that, pairs of LFOs feed analog maximum and minimum logic. Waves 2 and 3, and 6 and 7, generate bipolar outputs that always follow either the highest or lowest voltage of each pair. These shapes feel more animated and less predictable than the original triangles, while still staying musically related.

The trigger section produces gates at the start of the rising edge of LFOs 2, 4, 6, and 8. The outputs cascade clockwise, so activity accumulates toward the final output. This creates rhythmically linked triggers without needing clocks or dividers.

The bottom section generates four distinct random voltages. Each output combines multiple LFOs in different arrangements, producing continuously changing but rate locked randomness. These signals move slowly and deliberately, making them useful for evolving patches rather than abrupt variation.

Together, the expander turns Øchd into a broader modulation ecosystem. It suits systems that rely on related motion, layered modulation, and subtle internal structure rather than strict timing or external randomness.