Grainity

Description

Not using and need to free up HPDigitally-controlled full-analog path Granular + Multimode VCFThe Grainity brings a unique and never-heard-before concept to the world of analog VCF.While being based on analog filtering only, the Grainity expands and enriches the sound in creating subharmonics, harmonies, unison, flanging effects and formant filtering all at once.The module presents two sections, the granular filter itself and a typical multimode filter, each with its own output.A third output offers a mix of both filter paths. Numerous controls and CV allow a very wide palette of results.FeaturesUnique concept of granular VCF100% analog audio pathTwo simultaneous filter flows, Granular VCF and Multimode VCF, with separate outputsMixing of both filter’s output to a dedicated outPhase inversion switching between the two filtersShared frequency and resonance controlsMultimode filter with various types and polesSelf-resonance capabilityGranular filter with unique controls:Structure selection from a predefined listDivision to extend the grains lengthPhase setting of the cycling pointTracking and offset tuning of the cyclesDetect input for cycling unrelated to audio input7 CV inputs to control all settingsCurrent settings maintained over power cycleFirmware update via a simple audio fileScratch-resistant printed aluminum panelCompact and skiff-friendly moduleWhat is the GrainityGranular?The word granular was chosen for this filter module in relation to the concept invented by the composer Yannis Xenakis, and which is described as assembling small chops of sounds - he called grains - according to a pattern.This is exactly what the Grainity does, no more no less ... but, digital control allows doing it in ways that are decades away from what tape and scissors allowed at the time.Technology wise ...In the granular section, the incoming sound cycle is determined in order to step through various filtering and phase variations of itself according to predefined patterns called structures.The controls allow alterations to the cycling phase, cycling frequency offset (tuning), structure selection and frequency division of the filters cycling. This comes in addition to the usual filter frequency and resonance controls.What the Grainity is notTechnology wise ...Despite relying on a microprocessor, the Grainity is not a digital audio processor. At any time, the sound remains in the analog domain and goes through analog circuits from in to out.The digital processor does not convert or generate audio signals; it is there to control the analog circuitry and manage the interface and display.Sound wise ...Several digital modules offering granular processing rely on the layering of sound grains, which leads to blurry and cloudy textures.Layering of the grains is a late addition to the concept of granular synthesis and is not a mandatory feature of the concept.The Grainity does not use delay lines or sampling memory but is nevertheless true to the foundations of the granular synthesis concept.The granular VCF in the Grainity is unconventional in that, most of times, it is not filtering the sound in the common expectation of removing something. Typically, the granular process adds more than it removes by expanding both the lower range, creating subharmonics, and the upper harmonic contents in multiples ways.

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