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Nebula3 features emulations of many classic bits of hardware.

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When the sampler arrived, it blew the doors to many a musician’s imagination wide open. At last, you could capture any sound you liked and use it in your music.

But what has this got to do with Acustica Audio’s new Windows VST effect processor? Everything, as it happens.

Nebula3 is the “world’s first effects sampler”, and its VVKT (Vectorial Volterra Kernels Technology) allows for authentic virtual recreations of hardware effects units, speaker cabinets, microphones, preamps and more. VVKT is different to convolution, as it recreates many non-linear systems that straightforward convolution cannot.

A whopping 338 Programs (simulations) are supplied, many sampled from famous bits of kit. You can currently buy Nebula3 as a download, though at 6GB for the complete library, let’s hope Acustica get the DVD version sorted sharpish.

The faux-LCD display’s Fast page breaks programs down into categories of PRE (preamp), EQU (equaliser), FLT (filter), COM (compressor), TPE (tape), MIC (mic), AMP (amplifier), TMV (generic time-variant effects, such as phasers, choruses, flangers) and REV (reverb).

There are two versions of the Nebula3 VST supplied: Nebula3Reverb must be used for reverbs and time-variant effects, and it introduces latency as a side-effect, though the regular Nebula3 has next to no latency.

Installation and performance

To load a program, you click it in the list and, after the data has loaded, the labels above the eight main faders show the parameters for that emulation (you can control them via MIDI, and there’s MIDI learn onboard). An EQ will have controls for frequency and attenuation, a preamp might have a drive control, etc.

Confusingly, many of the effects that aren’t compressors have controls for attack and release – these actually fine-tune how quickly Nebula ‘reacts’ to the incoming signal. The emulations don’t necessarily give control over every parameter of the original hardware either, so many EQ emulations, for example, have low, middle and high bands as separate programs.

So what you want to know is: How does it sound? We’re pleased to report that Nebula3 really is able to bring something special to your mixes. The compressors, for instance, can impart a wonderful character that we’ve rarely (if ever) heard in software compressors, and we could easily get them pumping and squeezing in very musical ways. We’re now quite in love with the ‘Boeing 747’ and ‘Do U Wanna Comp?’ programs.

Similarly, the EQs do more than just equalise; they can introduce colour and texture, sometimes subtle, sometimes not so.