The Fenestrated Eurorack Module by Nonlinear Circuits (NLC) contains three individual window comparator circuits, each offering a distinctive way of creating gate or timed events from CV signals. Through these, amplitude and pulse width modulation, methods largely explored in music synthesis, can be easily achieved at varying rates. The idea is to unlock and expand upon the multitude of sounds readily available within your signal. The names for the comparators might seem somewhat grandiose, but they are all inspired by a study penned by H.K Verma regarding some special-purpose comparator circuits. While the actual circuits in the NLC Fenestrated module differ from Verma's work, their guiding principles still bear his influence.
The Special Comparison Instant is arguably the most regular window comparator of the set. Here, the knobs can control the high and low voltages between which the output gate will solidify. Patching in CV signals can also alter these settings, opening the door for endless sound alterations. Thus, your music can morph from a simple synth sequence to pure sonic pandemonium at a moment's notice.
Comp for Concurrent Magnitudes offers a more complex usage. In this scenario, a gate output is derived when the signal on Input 1 is measured against the setting of the SET/In2 knob. If no signal is present on In 2, a fixed voltage set by the knob becomes the point of comparison. Contrastingly, if a signal is inputted into In 2, the amplitude of that signal becomes the comparator. The added feature of an adjustable gate level (up to 10V), or the opportunity to create envelopes or bursts rather than simple gates, further diversifies its unique applications.
Last but certainly not least, we have Comp for Restricted Openings. This comparator employs a knob (WIDTH) or CV control to set and alter the gate width. In1 and In2 are summed together and tested against the level chosen with the SET knob. Experiencing the way these two inputs interact can yield some truly remarkable results.
Constructing the Fenestrated Eurorack Module is fairly straightforward. However, it's crucial to note the importance of bending the LEDs slightly upwards to shine through the windows from the bottom. Utilizing super-bright LEDs is particularly beneficial for this module as they illuminate through the PCB panel, giving this module its "Fenestrated" or window-like character. This method introduces a mesmerizing visual element to the audio capabilities of the module, making it a stunning addition to any Eurorack system.
In conclusion, the Fenestrated Eurorack Module brings a unique perspective to signal manipulation and gate creation. Its basis on Verma's novel comparator circuit framework allows it to transcend the norms of how we handle CV signals and can significantly extend the aural creativity of any modular synthesist. With each comparator offering its distinct functionality, this module personifies the beauty of the Eurorack philosophy, where versatility, experimentation, and personal expression reign.
Example Usage
In the NOVICE-level usage of the Triple Window Comparators of the Fenestrated Eurorack Module, you will find three unique circuits that offer a twist on traditional window comparators. Each comparator serves a specific purpose, allowing for diverse modulation possibilities in your Eurorack setup.
The Special Comparison Instant comparator operates as a standard window comparator, enabling you to define upper and lower voltage thresholds for gate triggering. Additionally, you can introduce CV signals to modulate these thresholds dynamically.
Moving on to the Comp for Concurrent Magnitudes comparator, it generates a gate based on the comparison between Input 1 and the SET/In2 pot setting. By adjusting the potentiometer, you can control the amplitude of In 1 relative to the signal present in In 2. Moreover, the Level pot feature offers the flexibility to set gate levels or process external signals for envelope shapes.
Lastly, the Comp for Restricted Openings comparator allows you to adjust gate width using the WIDTH pot or CV control. The summed signals from In1 and In2 are compared against the level set by the SET pot, providing a customizable approach to gate width modulation.
When assembling the Fenestrated Eurorack Module, remember to angle the LEDs slightly upwards for optimal visibility through the windows on the panel. Opting for super-bright LEDs enhances the visual appeal and functionality of the module, ensuring efficient performance within your Eurorack system.
In addition to their individual characteristics, the Triple Window Comparators of the Fenestrated Eurorack Module can be creatively integrated into your modular setup to generate innovative and dynamic soundscapes. Experiment with patching in various CV signals to explore unique gate/timed events from chaotic sources. Utilize the Comp for Concurrent Magnitudes to compare different input signals and leverage the Level pot to fine-tune gate levels or create evolving envelopes. Dive into pulse width modulation at audio rates with the Comp for Restricted Openings, adjusting gate width for diverse sonic outcomes. Remember to pay attention to LED placement during assembly to ensure optimal functionality. Let your creativity flow as you delve into the sonic possibilities offered by these distinctive comparator circuits.
Further Thoughts
In the realm of Eurorack modulation and envelopes, the Fenestrated module shines with its Triple Window Comparators. These comparators offer a unique twist on traditional window comparison, providing a playground for crafting gate/timed events from chaotic signals or any CV input. Moreover, they open up avenues for exploring pulse width modulation at audio rates, promising a treasure trove of captivating sonic possibilities.
The Triple Window Comparators within the Fenestrated module bear illustrious names inspired by H.K Verma's paper on special-purpose comparator circuits. Each comparator boasts distinctive characteristics, offering a range of creative functionalities to delve into:
- Special Comparison Instant: With adjustable high and low voltage settings, this comparator allows for precise control over gate output conditions. By introducing CV signals, the comparator's behavior can be dynamically altered, adding a layer of modulation complexity.
- Comp for Concurrent Magnitudes: Setting the stage for intricate comparisons, this comparator outputs a gate based on the comparison between Input 1 and the SET/In2 pot setting. The Level pot further enhances flexibility by enabling gate level adjustments up to 10V, or by accepting external signals for envelope generation.
- Comp for Restricted Openings: Embracing gate width customization, this comparator introduces a WIDTH control for shaping the gate duration. The combined input signals from In1 and In2 are compared against the level established with the SET pot, allowing for nuanced gate manipulation.
If you're intrigued by the Fenestrated module's potential, dive into the building process with a keen eye on LED placement to ensure optimal visibility through the PCB panel's windows. Employing super-bright LEDs enhances the visual appeal and functionality of this module, elevating your Eurorack setup to new heights of creative exploration.
For more information on the Fenestrated module and its Triple Window Comparators, visit the official product page at nonlinearcircuits.com/modules/p/fenestrated.