Format: Eurorack
Width: 10HP
Depth: 30mm
Current: 70mA @ + 12V, 65mA @ -12V
Manual PDF (English)
Joranalogue Orbit 3 is a chaos oscillator that optimizes the classic double-scroll attractor used in chaos theory for the Eurorack modular environment, providing a signal with natural irregularity, excellent controllability, and repeatability.
Operating in both low-frequency and audio frequency modes, the Orbit 3 generates a variety of waveforms from its three output pairs. The voltage of each output changes according to the double-scroll attractor formed by the module's circuitry. This double-scroll attractor can be interpreted as representing the trajectory of a particle in three-dimensional space centered on two equilibrium points. ( A quick search will give you an intuitive understanding of how this attractor works.)
In Orbit 3, the parameters of this attractor model— equilibrium point position , trajectory distribution , and movement speed —can all be controlled manually or via external voltage. Furthermore, its temperature-guaranteed 1V/Oct pitch tracking capability allows it to function as a quirky yet lively and accurate audio oscillator.
By providing greater control and repeatability than simple randomness, the Orbit 3 interface, which brings natural irregularities to mechanical music, consists of a simple yet effective set of parameters.
The image below shows a typical shape that occurs when a 6D orbital is projected in two dimensions with various parameter values using only two of the six outputs.These images are based on a capture of the output of a working module.
Use Orbit 3, a gated signal switch, and a single oscillator to create two alternating chaos-modulated voices.Use the selector switch to patch two different waveform outputs. Set Orbit 1 to low frequency mode and modulate the oscillator frequency with one of the Z outputs.Then patch the EP output to the switch's gate input.The switch cycles two waveforms, each modulated with a different center pitch.
There are various feedback patches in Orbit 3.For example, by patching one of the X outputs to the Freq input and setting the amount of modulation to maximum, the waveform of the Z output will look like a sawtooth wave instead of a sine wave.Various tones can be obtained by combining the feedback path and output.
You can easily find a stable point by experimenting with each parameter during normal operation, but patching the EP output to the reset input will allow Orbit 3 to oscillate stably.You can control the oscillator frequency as usual, but by adjusting the distribution and equilibrium point parameters, the perceived pitch will change in stages in audio frequency mode. For best results, set to Tame mode.
