How to Recreate the Dubstep Growl Bass

In 2010 a track called “Scary Monsters and Nice Sprites” made a bass sound that seemed to talk — a snarling, vowel-chewing, mechanical growl that a generation of producers has been trying to rebuild ever since. It sounds like a secret plugin or a preset you have to buy. It is not. Strip it back and the growl is three ordinary ideas stacked on top of each other, and the one that actually matters is the one most tutorials skip. By the end of this guide you will build a growl from scratch in any synth — free tools included — and understand exactly why it moves, so you can make your own instead of copying someone’s preset.

It’s movement, not a patch

The most common mistake with a growl bass is treating it as a sound — a static tone you dial in once and hold. It isn’t. A growl is a gesture: one held note whose timbre changes rhythmically over time. Freeze it at any single instant and you have an ordinary distorted bass. Let that instant move — open, close, form a vowel, snarl — on a rhythmic grid, and you have a growl. The movement is not decoration on top of the sound; the movement is the sound.

This is the single idea that separates a convincing growl from a beginner’s. It is also why a screenshot of someone’s synth almost never gets you there: a still image captures one frozen frame of something whose entire identity is that it doesn’t stay still. Once you internalise “the growl is a moving timbre,” every specific technique below stops being a magic recipe and becomes an obvious means to that one end. We take the sound apart in that spirit — mechanism first, so you can rebuild it in any dubstep track, in any synth, and bend it to your own ideas.

There is a simple test for whether you have understood the growl: can you make the same patch sound like a lazy wobble, a chattering snarl and a talking monster, changing nothing but the movement? If yes, you have stopped thinking about growls as sounds and started thinking about them as motion — and everything downstream gets easier. If no, the rest of this guide is the map from one to the other.

Where the growl came from

Dubstep grew up in London in the 2000s as a dark, half-time, bass-led style, and by the end of the decade a heavier, more mid-range-forward strain of it — sometimes called brostep — pushed the bass itself into the spotlight. The pivot point in the popular memory is “Scary Monsters and Nice Sprites” (2010): a 140 BPM record whose lead bass didn’t just wobble, it articulated — snarling, chewing through vowels, sounding almost vocal. That talking quality is what people mean when they say “the Skrillex growl.”

What makes this a real recreation target rather than a vague genre trick is that the tools are documented. In a 2011 interview Skrillex named Native Instruments Massive and FM8 as his two go-to synths, working on a MacBook Pro in Ableton Live, and said he leant on FM synthesis because he knew those instruments well enough to make almost any sound with them. That is the confirmed part. The specific patch that made the Scary Monsters lead was never published — so the widely-taught “moving wavetable in Massive plus distortion” method is best understood as an excellent community recreation, which is exactly how this guide treats it.

It helps to place the growl in a family. It is a close cousin of the Reese bass from drum & bass — both are dense, detuned, harmonically rich basses — but where a Reese is defined by its static beating and width, the growl is defined by its movement. It shares DNA with the trance supersaw in raw harmonic density, and it sits at the opposite pole from a clean sub like the 808 bass, which is prized for being pure and still. Hearing those neighbours makes the growl’s own identity obvious: density you can find elsewhere; the rhythmic morph you cannot.

The wider context is worth a sentence, because it explains why this sound exploded. Dubstep’s early UK form was spacious and sub-heavy; the sound that broke internationally around 2010 pulled the bass forward, made it louder and more mid-range, and turned sound design itself into the hook. In that environment a bass that could articulate — snarl, chew, seem to speak — wasn’t just a texture, it was the lead instrument and the reason a track went viral. The growl became to that era what a guitar riff was to rock: the thing people air-drew and tried to reproduce. That is why, fifteen years on, “how do I make that bass” is still one of the most-asked questions in electronic music production.

What the growl actually is

Here is the whole sound in one map, before we build any of it. A growl is five stages in series, and only one of them is unusual. Source: a harmonically dense oscillator — a wavetable, an FM patch, or a stack of detuned saws. Movement: something that sweeps the timbre rhythmically — an LFO or drawn automation on the wavetable position or a filter. Formant: a comb or formant filter that carves vowel-like resonances so the bass seems to speak. Distortion: a waveshaper that multiplies the harmonics into a snarl. Glue: multiband or OTT-style compression that evens the whole thing out.

Four of those five stages are completely ordinary synthesis you already use on other sounds. Source, distortion, filtering and compression appear on basses, leads and pads all day long. The stage that turns this particular combination into a growl is the movement — stage two. Take it away and every other stage still functions perfectly; you will simply have a distorted, filtered bass that sits there. Add it back and the bass comes alive. Keep that hierarchy in mind as we go: the movement is the load-bearing wall, everything else is finish carpentry.

The source: density before anything else

Distortion cannot add detail that was never there; it can only amplify and fold what you feed it. So the growl starts with a source that is already harmonically rich, because a rich source gives the later stages something to grab. There are three classic routes, and they are more alike than they look.

Wavetables are the modern default and the one most associated with the Skrillex growl. A wavetable is a series of single-cycle waveforms — frames — that a synth can smoothly scan between. Pick a bright, buzzy table and you have both density and a built-in way to create movement later, because sweeping through the frames changes the timbre. In Serum, Vital or Massive this is the home base for a growl. FM synthesis — the method Skrillex specifically called out — gets there differently: one oscillator modulates another’s frequency, generating clangorous, metallic sidebands that are perfect raw material for a snarl, and the modulation index gives you another thing to move. Detuned saws, the Reese approach, stack two or three sawtooths slightly out of tune so they beat against each other into a thick, unstable wall.

Whichever you choose, the goal at this stage is the same: get a tone that is already too bright and too busy to be polite. If your source sounds clean and tame, no amount of distortion downstream will make it growl convincingly — it will just make a clean sound loud and harsh. For a deeper tour of the instruments themselves, our roundups of the best synth plugins and the best free VST plugins cover which synths do wavetables and FM well at every budget.

A word on choosing a wavetable, because it trips people up. A wavetable is not one waveform but a collection of them, arranged so that the synth can glide from frame 0 to the last frame. For a growl you want a table whose frames differ a lot from one another — because the movement in stage two comes from scanning through those frames, and if every frame sounds the same, sweeping the position does nothing audible. Bright, buzzy, aggressive tables labelled things like “growl,” “vox,” “digital” or “hard” are good starting points precisely because their frames are wildly different from each other. A soft, sine-like table will refuse to growl no matter what you do to it downstream.

On the FM route, the useful mental model is: a carrier oscillator is the note you hear, and a modulator oscillator bends the carrier’s frequency thousands of times a second, splattering extra sidebands around it. The ratio between their frequencies decides the character — whole-number ratios sound musical and metallic, non-integer ratios sound clangy and dissonant — and the modulation amount decides how dense it gets. That amount is another thing you can move in stage two, which is why FM growls have a distinctive glassy, aggressive edge. You don’t have to understand the maths to use it; you have to know that turning up the modulation gives you density, and moving it gives you life.

The movement is the sound

Now the stage that everything else exists to serve. Take your dense source, hold a single low note, and route an LFO to the timbre control — wavetable position on a wavetable synth, the FM amount on an FM patch, or a filter cutoff on anything. As that LFO rises and falls, the harmonics of your held note open and close in time. The pitch never changes. The brightness and character change, rhythmically. That is a growl.

Two controls decide the feel. Rate is how fast the timbre moves. Slow — a cycle every beat or half-beat — gives you a lazy wob. Fast — several cycles per beat — gives you the tight, chattering growl. The single most useful habit is to tempo-sync the LFO so it locks to musical divisions (1/4, 1/8, 1/16) rather than a free-running frequency; a growl that is locked to the grid sits in the track, and one that isn’t sounds accidental. Shape is what the movement does between its extremes: a smooth sine gives a rounded wob, while stepped or custom LFO shapes give the stuttering, rhythmic patterns that make modern growls feel programmed rather than merely swept.

This is also where the interactive tool below earns its place. Load it, hold a note, and push the LFO rate from zero upward: you will hear a static bass become a growl in real time, with nothing else changing. That before-and-after — same note, same distortion, movement off versus on — is the clearest possible demonstration that the motion is the identity of the sound.

One more idea earns its keep here: you don’t have to use an LFO at all. Drawn automation — literally sketching the wavetable position or filter cutoff by hand across the bar — gives you total control over the rhythm of the movement, which is how the most articulate, “talking” growls are built. An LFO gives you a repeating pattern for free; automation lets you compose the movement like a melody. Most producers start with a tempo-synced LFO to get the feel, then switch to automation when they want a specific phrase. The same principle powers a whole family of moving-filter sounds, from this growl to the resonant sweep of the 303 acid line.

Once the basic LFO move clicks, a few refinements separate a decent growl from a great one. The first is using more than one modulator: run a slow LFO on the wavetable position for the broad opening-and-closing, and a faster one on the filter or the FM amount for a chattering detail on top. Two movements at different rates interfere with each other and produce the complex, evolving motion that makes elite growls sound almost improvised. The second is LFO shape as a compositional choice: a stepped LFO (a sequence of held levels) turns the movement into a rhythmic pattern, which is the backbone of the stuttering, gated growls in modern riddim and brostep.

It is also worth being precise about what you modulate, because the target changes the flavour. Modulating wavetable position changes the harmonic content directly — the purest form of the Skrillex-style morph. Modulating a filter cutoff is the classic subtractive-synth wob, more like a fast version of the resonant sweep behind an acid line. Modulating FM amount or distortion drive makes the grind itself pulse. Most full-featured growls modulate two or three of these at once, which is exactly why they resist being copied from a single screenshot: what you are hearing is several timbre parameters moving together on interlocking rhythms.

The vowel: why a good growl seems to talk

Movement makes a bass growl; formants make it seem to speak. A formant is a resonant peak in a sound’s spectrum, and human vowels are essentially patterns of formants — the difference between “ee,” “ah” and “oh” is which frequencies are emphasised. When you carve similar resonances into a bass and then move them, the ear hears something uncannily vocal. This is the extra layer that separates a merely aggressive growl from one that sounds like it is chewing words.

There are two easy ways to get it. A comb filter adds a series of evenly-spaced notches and peaks across the spectrum — sweep it and the sound takes on a hollow, vowel-ish, phaser-like character. A dedicated formant filter (or a couple of resonant band-pass filters tuned to vowel frequencies) is more explicit: set it to morph between vowel shapes and the bass literally says “wow” or “yoi.” The trick, as always, is motion: a static formant is just an EQ colour, but a formant that moves with the LFO — or on its own rhythm — is the talking growl. Layer that on top of stage-two movement and you get the rich, chattering, articulate sound people chase.

If you want to be deliberate about it, the vowel frequencies are worth a rough map. The vowel “ee” has a low first formant and a very high second one; “ah” has both formants in the low-mids, close together; “oh” and “oo” sit low and dark. You do not have to hit these exactly — two resonant band-pass filters, one somewhere in the low-mids and one higher, that you sweep together, will read as “a bass making vowel shapes” long before it reads as any specific letter. Dedicated formant filters and vocal-formant modes in synths like Serum and Vital do this for you, letting you morph between named vowels on a single control that you can then modulate.

The reason formants matter so much for this sound specifically is that the ear is astonishingly good at recognising speech-like resonance. Give a listener a moving bass with vowel formants in it and their brain insists it is almost-talking, even though there is no voice anywhere in the signal. That perceptual trick — a synth borrowing the acoustics of a mouth — is the difference between an aggressive bass and one that seems to have something to say. It is a cousin of the vocoder/talkbox illusion behind the Daft Punk robot voice, arrived at from the opposite direction: there, a voice is made robotic; here, a robot is made voice-like.

The grind: distortion, done right

Now the dirt. Distortion is what turns a clean, moving wavetable into a snarling one, and it works by generating new harmonics — folding and clipping the waveform so its spectrum sprouts extra partials it never had. That is why source density matters: distortion multiplies what is there. Feed it a rich, moving tone and it produces a dense, evolving harmonic field. Feed it something thin and it just produces harshness.

The mistake beginners make is reaching for one extreme distortion and cranking it, which produces a fizzy, one-dimensional buzz. The professional approach is stages: two or three gentler distortion units in series — a soft saturator, then a harder waveshaper, maybe a bitcrusher for grit — each adding a different flavour of harmonics. Between and after them, filtering is what keeps it musical: a low-pass to tame the fizzy top, sometimes a band-pass to focus the grind in the mid-range where dubstep basses live. And crucially, you often put a distortion stage after the moving filter, so the movement modulates into the distortion — the harmonics being generated change as the timbre sweeps, which is a big part of why a good growl feels alive rather than static-and-loud. To keep all that energy sitting right in the mix, our guide to mixing bass covers the multiband and saturation moves that hold a growl together.

It helps to know the family of distortions, because each colours the harmonics differently. Saturation (tube or tape style) is the gentlest, rounding and thickening; it is where a lot of pros start a chain. Waveshaping is more aggressive and more surgical — you are literally redrawing the transfer curve, and hard shapes produce buzzy, electric harmonics. Wavefolding folds peaks back on themselves for a glassy, complex result that suits growls beautifully. Bitcrushing and sample-rate reduction add digital grit and aliasing, the harsh sparkle in a lot of modern basses. Chaining a couple of these — say saturation into a waveshaper into a touch of fold — stacks their characters into something far richer than any one at full tilt.

Order of operations is a real lever, not a detail. Distortion before the moving filter means the filter sculpts an already-dirty signal, taming and shaping the grind. Distortion after the moving filter means the movement feeds into the distortion, so the harmonics being generated shift as the timbre sweeps — a livelier, more “designed” result. Many great growls use distortion in both positions, with filtering between them, so you get controlled dirt going in and reactive dirt coming out. There is no single correct order; there is the order that gets the sound in your head, found by trying both.

Recreate it: free and stock tools first

You do not need a paid synth for any of this, and proving that is the whole point of the category. Here is the growl built entirely with free or stock tools, stage by stage.

Source. Open Vital — a free wavetable synth that rivals paid ones — or any stock synth with a wavetable or a saw you can detune. Pick a bright wavetable, or stack two saws detuned a few cents apart, and drop the note low (around the octave below middle C is typical). Movement. Assign an LFO to the oscillator’s wavetable position (or, in a subtractive synth, to the filter cutoff). Set the LFO to tempo-sync and try 1/8 to start. Right there, before any distortion, you should already hear the timbre moving. Formant. Add a comb filter or a resonant band-pass and give it a little movement too. Distortion. Insert a stock saturator or waveshaper after the filter and push it until the tone snarls; if you have two mild distortions, chain them rather than maxing one. Glue. Finish with a multiband compressor (many DAWs bundle one) to even out the bands, and a gentle low-pass to remove fizz.

That chain — wavetable, moving LFO, comb, distortion, multiband — is a complete growl with zero paid plugins. If it sounds close but thin, the fix is almost always the source (not dense enough) or the movement (too slow, or not tempo-synced), not the distortion. The interactive tool above is deliberately built on exactly this signal path, so you can hear the target before you build it in your DAW.

A note on the specific stock tools in the big DAWs, so you are not left hunting. In Ableton, Wavetable handles the source and its movement, Erosion and Overdrive add grit, and a comb-filtered Corpus or a resonant Auto Filter gives the vowel; Glue and Multiband Dynamics finish it. In Logic, Alchemy is a superb wavetable and formant engine on its own, with Distortion and Phat FX for the dirt. In FL Studio, the stock synths plus Fruity Waveshaper, Distructor and a comb-mode filter get you all the way there. The names differ; the five stages do not. If your DAW has a wavetable synth, a way to move a parameter with an LFO, a distortion and a multiband compressor, you can build a growl in it today.

The paid shortcuts, and what they buy you

Paid synths don’t contain a secret growl ingredient; they make the same chain faster and more fun to sculpt. Serum (and Serum 2) is the modern favourite for a reason: real-time wavetable editing, drag-and-drop modulation and built-in distortion and comb-filter effects mean you can build the whole growl inside one plugin and see every move. Massive is the historically-authentic choice — it is what Skrillex named — and its wavetable oscillators plus flexible LFOs are still excellent for this. FM8, also his, is the FM route to the same density. Newer synths like Phase Plant let you stack the distortion stages as modules in one window.

The honest guidance: if you already own a capable wavetable synth, you have everything you need. If you are choosing one, the Serum 2 vs Vital comparison weighs the leading paid option against the leading free one for exactly this kind of work, and our synth roundup covers the rest.

Whatever you pick, resist the urge to buy your way to the sound. The number of producers who own Serum and still cannot make a convincing growl is large, and the number who make great ones in free Vital is also large — because the variable that matters is whether you have internalised the moving-timbre idea, not which logo is on the plugin. Spend an hour building the chain by hand in whatever you already own before you spend money; you will almost always find you already had what you needed.

The resampling trick that makes it wild

There is one workflow move that is arguably as important as any single plugin, and it is invisible in a screenshot: resampling. You build a growl, bounce it to audio, then treat that audio as raw material — chop it, warp it, pitch it, run it through new distortion and filters, and bounce again. Each pass compounds complexity that would be almost impossible to dial in from a synth in a single shot.

Why it matters: a synth patch is limited by its own modulation routing, but audio has no such limits — once the growl is a waveform you can do anything to it, including things the synth could never do. This is a large part of why elite growls sound impossibly detailed and slightly unpredictable: they have been through several rounds of bounce-and-mangle. Skrillex’s own workflow was famously built on heavy in-the-box editing and processing rather than exotic hardware, and resampling is the engine of that approach. Start simple — build a decent growl, bounce it, add one new distortion, bounce again — and you will immediately hear why the technique is a staple of dubstep production and its faster cousin, drum & bass.

Playing it: the half-time groove and the notes

A growl is only as good as the phrase you play with it, and dubstep has a specific pocket. The tempo is 140 BPM, but the feel is half-time: the kick lands on beat one and the snare on beat three, so the groove feels like a heavy 70 BPM even though the grid is 140. Your growl phrases breathe in that half-time space — long, articulated notes that leave room for the movement to be heard, rather than a wall of constant sound. Building that foundation is covered in our guide to making a beat.

Note choice is simpler than it looks. Growls usually live low and lean on a handful of notes — a root, a fifth, an octave, the occasional bluesy semitone — because the interest comes from the timbre moving, not from a busy melody. A common approach is to write a short rhythmic pattern of held notes and let the LFO or automation do the talking on top. The commonly-detected key of “Scary Monsters” is around G minor (an analysis estimate, not an official figure), which is a comfortable, dark register for this kind of bass; but any minor key works, and you should choose one that fits the rest of your track. The rhythmic placement of the growl’s movement against that half-time kick and snare is where the genre’s signature lurch comes from.

The “talking” rhythm deserves its own note, because it is where growls become musical rather than merely loud. Think of the movement as a rhythm you are performing on the timbre: instead of a constant wob, phrase it — a couple of fast opens, a held snarl, a stutter, a fall. Producers often literally sing or beatbox the growl rhythm they want, then draw that rhythm as automation or program it as a stepped LFO. When the movement rhythm interlocks with the drums — a growl that opens on the off-beat, snaps shut on the snare — the bass and the beat feel like one instrument, which is the genre’s signature lurch. This is the same rhythmic thinking that drives a good drum & bass bassline, just at half the felt tempo.

Layering: the growl on top, the sub underneath

One practical truth about growls in a mix: all that distortion and movement lives in the mid-range, which means a solo growl often has surprisingly little low-end weight. The professional fix is to split the bass into two parts. A clean, static sub-bass — a sine or near-sine an octave or two below — carries the weight and the note; the growl sits on top and provides the character and movement. Because the sub does the low-frequency work, you are free to distort and filter the growl as hard as you like without turning the whole bass to mush.

The classic way to keep the two from fighting is a frequency split: low-pass the sub so it owns everything below, say, 120 Hz, and high-pass the growl so it owns the mids and highs, with a clean crossover between them. Keep the sub in mono for a solid centre while the growl can spread wide. Get this split right and a growl that sounded thin in isolation suddenly hits like a truck in the track, because the weight and the character are each doing one job well instead of one sound trying to do both. Our guide to mixing bass goes deep on the crossover and mono-management moves that make this reliable.

One method, many growls: the family of sounds

The reason the moving-timbre method is worth learning — rather than one preset — is that it is the seed of a whole family of basses. Slow the movement right down and widen the source and you drift toward a Reese bass. Make the movement a fast, stepped, rhythmic gate and you are in riddim territory, where the pattern of the movement is practically the melody. Emphasise clean, tuned formants and glassy FM and you get the “color bass” sound, where growls are pitched into chords. Push the distortion and the pitch and you arrive at the extreme, hyper-processed basses of modern hyperpop.

All of these are the same five stages with the dials in different places. That is the payoff of learning the mechanism instead of memorising a patch: one understanding unlocks a dozen genres’ worth of signature basses, and — more importantly — lets you invent your own that don’t sound like anyone else’s. The growl is not a destination; it is a doorway into sound design as a way of thinking.

2010 Massive vs 2026 Serum 2: same idea, better tools

It is worth being clear about what has and hasn’t changed since 2010, because it keeps you from chasing gear instead of technique. What hasn’t changed is the idea: dense source, moving timbre, formant colour, staged distortion, glue. A growl built with that chain today sounds like a growl for the same reasons it did fifteen years ago.

What has changed is the ergonomics. In 2010, building a growl in Massive meant careful LFO routing and a fair bit of resampling to get complexity. Today, a wavetable synth like Serum 2 or Vital gives you real-time visual feedback on the wavetable, faster modulation routing, and better built-in distortion and comb effects, so you can reach a wilder result in fewer moves and actually see the timbre move as you sweep it. The genre has moved on too — heavier, more designed sub-styles like riddim lean even harder on the movement and the rhythmic stutter — but they are all still the same five stages. Learn the mechanism once and every era’s tools are just different steering wheels on the same engine, from a vintage Massive patch to the extreme designed basses of modern hyperpop.

What you can’t clone — and why it barely matters

Honesty is the point of this category, so here is the limit. You cannot clone the exact Scary Monsters growl, because the exact patch, the exact chain of resampling passes, and the exact processing were never published, and even Skrillex could probably not reproduce it move-for-move from memory. Anyone selling you “the exact Skrillex preset” is selling a plausible recreation, not a photocopy.

But here is why that barely matters: the growl was never one fixed sound to begin with. It is a method for making a bass move and snarl, and the method is completely learnable and infinitely variable. The goal is not to counterfeit one 2010 bass note; it is to own the technique so you can make growls that are yours — which is exactly what every producer who chased this sound ended up doing. Chase the mechanism, not the museum piece, and you end up somewhere better than a copy.

Do you need to clear anything?

No. Recreating a growl bass is your own production using synthesis and processing — there is nothing to sample and nothing to clear. You are building a sound from oscillators and effects, the same way you would any other patch, so you own the result outright. The only thing to avoid is the obvious: don’t sample the actual record and don’t market your track as an official anything. Build your own growl and it is yours, free and clear.

Build the skill: three drills

Reading about movement is one thing; feeling it under your hands is another. These three drills take you from “I made a growl” to “I understand why it growls.”

The mistakes that make it sound wrong

Almost every disappointing growl fails for one of a handful of reasons. Check these before you blame your plugins.

Frequently Asked Questions