Noise Engineering’s Opp Ned: Four-Channel Arpeggiation in 8HP

Opp Ned ships with 12 pre-programmed arpeggios, giving users a quick starting point for everything from classic tetrads to pentatonic and minor third patterns. The video details how these presets are distributed across the module’s memory slots, with the first eight covering various tetrads—including a rather cheeky degenerate tetrad made entirely of major thirds—while the remaining four offer major, pentatonic major, minor third, and pentatonic minor options.

For those who prefer to roll their own, Opp Ned’s Load/Edit/Save workflow is straightforward. Users can load a pattern, edit it note-by-note using the encoder and switches, and save their creations to any of the 12 slots. The process is visually guided by the panel’s LEDs, which double as both note indicators and pattern slot markers. If you ever want to revert to the factory settings, a quick firmware flash via the Noise Engineering portal restores all original patterns. This flexibility, paired with the ability to transpose patterns on the fly via CV, makes Opp Ned equally suited to improvisation and pre-planned performance.

A standout feature of Opp Ned is its four independent outputs, each capable of advancing through the same arpeggio pattern at its own pace. By feeding different trigger signals to each channel, users can create intricate, interlocking melodic lines or send arpeggios to multiple oscillators for thick, harmonically rich textures. The video demonstrates how each output can be patched to separate destinations, with triggers advancing notes independently—a boon for anyone who enjoys polyrhythmic or generative approaches.

Beyond simple note advancement, Opp Ned offers deep configurability. Octave range can be set from one to three octaves, while the direction switch lets you choose between ascending, descending, or up-and-down movement. The pattern switch provides further variety, with options for sequential (Plane), zigzag (Zig), and random playback. All of these parameters are not only accessible from the panel but also CV-controllable, opening the door to evolving, hands-free arpeggiation that responds to modulation elsewhere in your patch.

Opp Ned’s trigger and reset inputs are central to its flexibility in a modular context. Each of the four trigger inputs advances its corresponding channel, allowing for truly independent rhythmic patterns across outputs. The reset input brings all channels back to their first step on the next advance, ensuring tight synchronization when needed. Holding the reset button freezes all channels on their current note, only releasing them to the first step when the button is let go—a handy trick for live performance or dramatic transitions.

This level of control means Opp Ned can serve as both a straightforward arpeggiator and a more experimental pattern generator, depending on how you patch it. Whether you’re after classic arpeggiated lines or want to inject a bit of unpredictability into your sequences, the module’s input scheme supports a wide range of creative workflows.