UVI Rumble Review: A New Take on Bass Synthesis

UVI suits up for the bass wars with Rumble, a low-end focused synthesizer that ingeniously splits every sound into three component bands. Is this enough to compete with established instruments like Massive? UVI is known for a lot of things, chiefly sophisticated instruments like Falcon and incredible sound quality. Cutting-edge electronic music production tools, however, are not really something we associate with the French developer. That’s all about to change, as Rumble, the company’s latest instrument, is a bass-forward synthesizer that aims to take on the big-name players in the low-end game like Native Instruments’ Massive and Kilohearts’ Phase Plant. Rumble has the sound quality, as you would expect. But it also brings something utterly unique to the (wave)table – and once you try it, you may not be able to live without it. Rumble Overview Rumble’s big selling point is its three-band architecture. In much the same way that a kick designer separates percussion construction into three levels (sub, body, and transient), Rumble does a similar thing with bass building. It’s got three identical synthesizers, each with oscillator and distortion sections, a unified filter, and separate effects that pass through a multiband compressor with adjustable crossovers. This multiband stage allows you to design separate sounds in what UVI is calling Body, Character, and Air stages. It’s ingenious, and makes you wonder why it’s not standard on bass synths (you can bet it will be now, though!). Each of the three synth engines is identical, so let’s look at what’s on offer. First up is the oscillator section. This contains nine models, including virtual analog, wavetable, FM, sample-based, and other bass-focused engines. There’s even a kick generator for 808s and techno rumbles. With a name like Rumble, there had better be! The oscillator then moves through a wave-shaper. As with the oscillator, this also presents a variety of different types. There are 10 distortion algorithms, to be exact, including clipper, sine, two foldback styles, noise, and more. Each also allows you to route amplitude modulation between the bands for extra crispiness. You also get a per-band effects slot, with 10 types on hand that run the gamut from reverbs and delays to cabinet distortion, chorus, and more esoteric circuits like Neuro, which combines chorus, phaser and drive into a single spectral transformer. And, in keeping with the low-end theory of the instrument, these are all tuned for bass work. Parked between the oscillator and effects stages is a global filter for processing all three bands into a single, cohesive whole. There are actually two filters here, with single, serial and parallel routings. The filter types themselves are a nice mix of traditional and modern, with Analog and Variable (the latter poached from the Oberheim XPander) sitting alongside Ripple, Swirl, Scream and Formant models. As you’d expect from a modern bass designer, Rumble provides plenty of modulation possibilities. Using the now-standard Massive-style drag and drop system, it gives you ADSR envelopes, LFOs, MSEGs (Multi Segment Envelope Generators), random sources, and even analog drift for a dose of instability. Lastly, the Master Section brings everything together with that multiband compressor. The compressor itself features eight different styles of dynamics control, from FET to OTT. You can also turn the compressor off and just use the bands as volume control. The crossover points are, naturally, adjustable. They’re also modulatable, which opens up all sorts of sound design possibilities. Each band can be independently panned, isolated, or even removed from the signal path. The Master Section also includes a four-band parametric equalizer and an on/off limiter at the output stage. Lastly, there are 16 macros spread across the top for combining modulations and parameters. Find out more [quote align=right text="Rumble's three-band architecture is ingenious, and makes you wonder why it’s not standard on bass synths"] Rumble In Use: Sound Design All of these features come together to create bass sounds that are powerful, punchy and full of motion if you want it. Let’s hear Rumble in action. Here’s a vintage-style synthesizer bass sound with juicy filter resonance. Let’s split it into its three components so we can hear them all separately. First, the sub, or what UVI calls Body: Next is the midrange Character: The Air: And now altogether: Rumble can do all manner of modern bass sounds, including Reeses. This Reese uses the Analog oscillator for the Body and Air, and Timbral wavetable oscillator for the Character band. Reese power: Rumble can also drone. This bass drone features wavetables in all three oscillators. Droning Rumble: The Low Down: In Conclusion There’s a lot to like in Rumble. It’s very easy to whip up powerful and punchy bass sounds, and the three-band layout ensures that any sound will be well-represented across the frequency spectrum. And, a