Technically, GFlux is a configurable, modulatable filter matrix, but for the benefit of those who prefer plain English, itâs four filters that can be wired together and controlled in various interesting ways.
Its specs make GFlux suitable for producing the familiar âcar eating the cassette tapeâ effect, delicate synth-style notching of pad sounds or, at the other end of the scale, extreme monster-mangled mixes. In short, the range of applications is huge. The first thing that strikes you when you open the plug-in window is that GFluxâs user interface is rather special. Itâs hard not to be impressed by both the quality of the artwork and the layout and functionality of the controls. After just a couple of minutes use, thereâs no need to refer to the manual at all -- the operation of everything is self-evident.
The four filters can be wired together in what appears to be every conceivable way. Each filter has five outputs -- low-pass, band-pass, high-pass, notch and peak -- and the main settings for each filterâs frequency cutoff and resonance (feedback) are set using four two-dimensional XY mouse pads. At the centre of the plug-in is the Master XY pad. In Absolute mode, this can be used to âtake overâ each filterâs individual pad. Alternatively, it can apply a ârelativeâ offset to the padsâ current settings; despite not being the default, this is probably more useful.
Underneath the XY pad are the master volume and effect blend settings, along with a distortion unit that offers a number of presets. The left-hand side of the user interface can be âswitchedâ to perform a number of different tasks. These include the graphical display of different filter types or the (somewhat more functional) adjustment of modulation characteristics. The GUI is a joy to use and full of nice little touches. The eight simulated red LEDs under the main XY pad, for example, show its routing status to the four filters.
All in all, then, GFlux is a great deal of fun, but that isnât to say that it doesnât have any downsides. For a start, each filter is mono in operation rather than stereo, so you canât necessarily take a great GFlux setup that you used on a mono track and simply plug it into a stereo one to get the same effect. This also means that stereo effects canât benefit from the same degree of extreme filtering as mono effects, since youâve only got two filters per channel instead of four.
In operation, GFlux doesnât throw up any nasty surprises once youâve got the hang of it, and thereâs very little in the way of frustration either, which makes for a refreshing change. But although the sound of the plug-in is fine, itâs not quite as revolutionary as you might suspect, making you wonder if itâs really worth Â£65. The fact is that you could achieve similar (if not identical) results by a number of different means.
For example, even a relative newcomer to Native Instrumentsâ modular audio system Reaktor could knock up an Ensemble thatâs functionally, visually and -- to all intents and purposes -- sonically identical to GFlux within their first week of using it. Itâs true that Reaktor costs considerably more, but thatâs not really the point: the issue is that Reaktor enables users to create any number of their own effects in the style of GFlux, so these days, plug-in developers really need to be making their products extra special to draw in the crowds.
The state of GFlux
So, although its user interface is very beautiful, the GFlux concept hasnât quite been taken far enough. It would be nice if the filters themselves were more flexible (instead of needing to be stacked to obtain the desired results), and nicer still if they were stereo (with width and pan controls on their inputs and outputs) and came with an alternative routing arrangement.
Itâs true that you can create a wide variety of filtering effects with GFlux, but even so, you canât help but feel a little short-changed. There isnât really much wrong with GFlux, then -- there just isnât quite enough of it for the money. The filters donât sound special enough to command a premium price, and their limited flexibility means you could be feeling constrained once youâve started down a particular sound design path.
If youâve got considerable experience, youâll find that, after having a bit of initial fun, GFlux ultimately starts to feel like an irrelevance. However, if youâre relatively new to computer music making and have some spare cash, GFlux certainly gives you an easy-to-understand introduction to the fine art of filtering and does its thing without fuss or confusing distractions. That being the case, itâs definitely worth a test drive.