Joranalogue Audio Design: Patch Experiments with On-Grid Random Gates

The video opens with Simon laying out the perennial modular challenge: how to create random gates that are not just wild, but also quantized to a rhythmic grid. In the Joranalogue ecosystem, this means harnessing modules that can inject probability into your clocking, rather than just spewing out untethered chaos. The distinction is subtle but crucial—random gates that follow the tempo of your sequence, rather than firing off at will, are far more musically useful for evolving patterns and generative patches.

Simon sets up a backbone patch using a non-Joranalogue sequencer to drive Generate 3 and Filter 8, with additional percussion for rhythmic context. The goal is to move beyond simply pinging a filter or triggering an envelope every beat. Instead, he’s after that sweet spot where randomness is present, but always in step with the clock—a technique that opens up a world of dynamic, yet controlled, modular rhythms.

The first major technique involves the Orbit 3 chaos module and the Compare 2 logic module. Simon demonstrates how Orbit 3’s chaotic outputs can be wrangled into rhythmic submission by combining them with a steady clock signal using Compare 2’s AND logic output. By patching a chaotic voltage from Orbit 3 into one input of Compare 2 and a clock (in this case, a triangle core from Generate 3) into the other, he creates a gate that only fires when both signals are high. This effectively gates the chaos to the rhythm, producing random but quantized triggers.

He notes that the frequency of the chaotic source is key: if it’s too high relative to the clock, you might get multiple gates per clock pulse, which can be either a feature or a bug, depending on your intentions. The oscilloscope reveals that the resulting gates are not consecutive, but remain tightly grid-locked. This approach is a classic example of using Boolean logic to sculpt randomness into something musically coherent.

Simon also points out that, in a pinch, a VCA can be pressed into service as a crude AND gate, opening up this technique to those without a dedicated logic module. The flexibility here is emblematic of the Joranalogue ethos—precise, but always open to clever patching.

Next, Simon turns his attention to the Step 8 module, exploring how it can be used to sample random or chaotic voltages in time with a clock. By patching a clock signal into Step 8’s step input and feeding it a source of randomness—be it Orbit 3, white noise, or even a VCO—he demonstrates how each clock pulse samples a new value. The result is a sequence of random voltages that are always tied to the grid, thanks to the timing of the sampling action.

He experiments with different Step 8 modes, such as shift and cycle, and shows how the analog outputs can be used as gates or triggers. Resetting Step 8 at strategic points can further shape the density and distribution of gates, allowing for anything from sparse, unpredictable rhythms to more regular, grid-bound patterns. The key takeaway is that Step 8 offers a versatile platform for controlled randomness, especially when combined with other modules in the system.