FREQ-FX by Dezert Audio — Eight Analogue-Modelled Modules for Colour, Width and Movement

Dezert Audio built its name on sampled instruments — FREQ-2 and PolyFreq are sample-based sound sources drawn from a collection of rare hardware. FREQ-FX is where that developer stopped supplying sounds and started supplying ways to transform them. The reasoning is sound: years spent recording characterful hardware teaches you what makes hardware sound like hardware — distortion that behaves musically, saturation that thickens instead of fizzing, modulation that drifts rather than oscillating mechanically. FREQ-FX is an analogue-modelled creative multi-effect built around eight modules, aiming to put the sound of classic effect pedals and hardware into a plug-in. It is deliberately not a surgical toolkit.

Eight Modules, Five Qualities

The developer frames the eight modules around five qualities that flat material usually lacks. Texture is the grit and surface character that separates a recorded sound from a rendered one — invaluable when a score is assembled from pristine sample libraries and needs a shared patina. Movement is modulation that stops a static sound sitting still in the arrangement. Width is stereo behaviour, how a mono source stops competing for the centre against dialogue and principal instruments. Depth is front-to-back placement, the dimension most in-the-box mixes lack entirely. Distortion covers harmonic generation from subtle thickening to outright destruction. Alongside the modules, an EXCITER control adds movement and high-end sparkle, offered as a blend rather than a switch — a sensible choice, since exciters are among the easiest processors to overuse.

Randomise First, Refine Second

The Randomize button is more central to FREQ-FX than a novelty feature would be, and it reflects something true about creative processing. With an EQ you know what you want before you start; with a creative multi-effect you usually know only that the sound is boring and you are searching for a direction. Methodically auditioning parameter combinations is slow, and biased toward the settings you always reach for. Randomisation breaks that loop: roll repeatedly until something catches your attention, then refine manually from there. That suits the plug-in’s position in a chain — it does character work, where the only test is whether the result serves the cue, rather than corrective work where a wrong answer is audible as a fault. For underscore passages, transitions and sound-design moments that need to feel discovered rather than assembled, that workflow is the feature.

Platform Facts and Requirements

On macOS, FREQ-FX requires Big Sur 11.0 or above, an Intel Core i5 or better or Apple Silicon M1 or better, and 8 GB of RAM, in AU and VST3 formats; the developer lists Logic Pro, FL Studio and Ableton Live as tested hosts. On Windows it requires 64-bit Windows 10, an Intel Core i5 or better and 8 GB of RAM, in VST3 only, with FL Studio and Ableton Live tested. There is no AAX build on either platform, so Pro Tools is not supported, and an internet connection is required for authentication — worth noting for offline studio machines. Other VST3 hosts such as Cubase, Studio One, REAPER and Bitwig would be expected to work, but they are not on the developer’s tested list, and that distinction is worth respecting before purchase.

A useful way to audition FREQ-FX is to place it on the material you are least satisfied with rather than the material you love. A stock string pad that sounds too clean for the scene, a synth line that occupies the centre without earning it, or a loop that repeats too literally are the intended patients: run the randomiser a dozen times, note the two or three directions that change the emotional temperature, and then work into the modules manually from there. Width and depth treatments are particularly valuable in dialogue-led scenes, where moving a decorative element out of the centre and further back in the virtual room can rescue intelligibility without turning anything down. Because the plug-in is the developer’s first step from instruments into processing, its priorities are instructive — it behaves like something built by people who make sounds for a living, aimed at the moment a production sounds finished on paper but not yet alive in the speakers.