ABLETON 12 SOUND DESIGN ATLAS
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Deep Dubstep Bass & Sub Language

How to write and voice sound-system sub basslines at 140 — sine phrasing, glide, pressure and gaps, slow wubs from Operator, Wavetable and Drift, pitch drops, octave jumps, beating subs, harmonics, tuning per key, mono and phase — plus an 8-line bassline library.

deep dubstepsubsinebasslinewubglideoperatorwavetabledriftsimplerroarsaturatordynamic tubephrygiansound systemmono140

In deep dubstep the bass is a language, not a sound. The vocabulary is small — a sine between 38 and 65 Hz, a slow "wub" an octave above it, slides, gaps, octave flicks — and the meaning is all in the phrasing: how long a note sustains, where it stops, how it glides, what it answers. This page is about writing and voicing that language in Live 12. The physics: a sound system reproduces the sub as physical pressure; the ear resolves pitch at 40 Hz only over 150+ ms, so sub notes are long and slow; the sub must be mono and phase-coherent with the kick; and harmonics are what let smaller systems and phones "see" the line. Everything here assumes 140 BPM (1/16 = 107 ms, 1/8 = 214 ms, 1/4 = 429 ms, 1/2 = 857 ms, 1 bar = 1714 ms) and Live's octave naming (C3 = middle C, F0 = 43.7 Hz). For the genre frame see Deep dubstep; for aggressive wobbles see Wobble and growl bass.

Anatomy

Recipes

Writing the sine sub: rhythm, note length, glide, call and response

Instrument: Operator · Level: essential · Genres: deep dubstep, DMZ-era, 140 deep

The core skill. A sub line is 2-bar cells, each with a long anchor note, a short gesture and a slide, arranged as a call and a response. Glide is phrasing: overlapping notes slide, separated notes re-attack.

  1. Operator, Osc A sine only, Voices 1, Glide on. Glide 30–50 ms gives a quick "scoop" (feels like a retrigger with character); 70–90 ms is the classic deep slide; 100–120 ms is a languid, vocal glide for halfstep and meditative lines.
  2. Note length: anchors 1/4 to 1 bar, gestures 1/16–1/8, rests at least 1/8. A note shorter than 1/8 (214 ms) barely registers as pitch at 45 Hz; use short notes only as octave flicks or slides.
  3. Slides: in the piano roll, extend a note so it overlaps the next by one 1/16 (or more). The glide starts when the second note begins. Live 12's Glissando transformation can generate these overlaps automatically between selected notes.
  4. Call and response: bars 1–2 state an idea low around the root; bars 3–4 answer higher (4th, 5th, b2 up the octave) and resolve. Bars 5–6 repeat the call; bars 7–8 vary the answer.
GlideFeelUse
30–50 msScoop, barely a slideBusy rolls, steppers
60–90 msClassic deep slideMost lines
100–120 msVocal, heavyHalfstep, meditative, big descents
Operator's glide is a constant-time glide: a 1-semitone slide and a 7-semitone slide both take the set time, so big intervals sound faster and more dramatic. That is why descents of a 5th or octave with 90 ms glide feel like a "dive" while a b2 neighbour slide sounds like a lean.

Sub pressure: sustain versus gaps

Writing · Level: essential · Genres: deep dubstep, halfstep

On a big rig, a sustained sub is felt as continuous pressure; a gap is a physical release. Writing the ratio between them is the groove of the track. Same notes, different gap pattern = completely different weight.

  1. Short Operator release (40–80 ms). A long release fills the gaps and kills the effect.
  2. Use the Note Length MIDI effect on a duplicate clip for a quick A/B: Mode Time, length 1/8 vs 1/2. Map its length to a macro to perform the change on Push.
  3. Plan pressure per section: intro of the drop 70–90% sustain (heavy), second 8 bars 40–60% (groove), last 2 bars before a switch either 100% or nearly silent.
Compare the sub's RMS meter between sections: a pressure section can sit 3 dB louder in RMS with the same peak level, which is why a sustained drop feels bigger with zero limiting.

Sub + mid split rack

Instrument Rack · Level: intermediate · Genres: deep dubstep, 140 deep

One MIDI clip, two chains: a clean sine sub below ~110 Hz and a movable mid "wub" above. The split lets you process, saturate and reverb the mid freely while the sub stays pure.

  1. Create an Instrument Rack. Chain 1 "Sub": Operator sine, LP 100 Hz at 24 dB/oct. Chain 2 "Mid": the wub synth, Transpose +12 in the synth (Operator coarse or the rack chain via the Pitch MIDI effect), HP 110 Hz at 24 dB/oct.
  2. Match glide times exactly on both synths, and set both to Voices 1 / Legato. If the slide times differ, you hear two separate basses.
  3. Crossover overlap: let the sub's LP and the mid's HP overlap around 100–120 Hz with the same slope so the sum is flat. Check by playing a sustained note and sweeping the mid chain volume: the low end should not change.
  4. Mid chain gets everything movable: Auto Filter LFO, saturation, a reverb send. Sub chain gets nothing but EQ, Utility and optionally a parallel harmonic chain.
Different latencies per chain shift the phase at the crossover. Live compensates inside racks, but if you add a lookahead device to one chain, check the sum with a sustained note and Utility phase invert on one chain: the overlap region should cancel cleanly when inverted.

Slow wobble divisions: 1/2, 1/1 and dotted

Instrument: any + LFO · Level: intermediate · Genres: deep dubstep, halfstep, DMZ-era

Deep wubs move at the speed of breathing. The division decides the feel: 1/1 is meditative, 1/2 is the classic, 1/4 dotted drifts across the bar, 1/2 dotted spans a bar and a half and creates a 3-bar cycle.

DivisionTime at 140Cycles per 2 barsCharacter
2 bars3429 ms1Tidal, almost static
1/11714 ms2Meditative "breath"
1/2 dotted1286 ms1.33Phase shifts, realigns every 3 bars
1/2857 ms4The deep "wub"
1/4 dotted643 ms5.33Lopsided, pushes against the snare
1/4429 ms8Upper limit before "wobble"
  1. Use a retriggered LFO (Auto Filter LFO phase reset, Operator LFO retrigger, Wavetable LFO retrigger) when note lengths are multiples of the division; use a free-running LFO when notes are irregular, for organic drift.
  2. Automate the division per 8-bar phrase, not per bar: 1/1 for the first 8 bars, 1/2 for the next 8, 1/4 dotted for the last 2 bars before a switch.
  3. Dotted divisions against a straight sub create polymetre: the wub peaks land on different beats each bar, which keeps a repetitive 2-note line alive for 16 bars.

LFO shapes: sine vs triangle vs custom Shaper curves

Modulators: Auto Filter LFO, LFO (M4L), Shaper (M4L) · Level: intermediate · Genres: deep dubstep, halfstep

At slow rates the LFO shape becomes audible as phrasing. Sine sounds like breathing; triangle has a noticeable "turn" at the top; a ramp sounds like a vowel opening; a custom Shaper curve can write a gesture ("wooo-AH") that repeats every half bar.

  1. Sine for meditative and halfstep; triangle when you want the peak of each wub to be felt as an event.
  2. Ramp up (opening slowly, closing instantly) at 1/2 makes the wub "inhale" into each snare and drop away on the downbeat, leaving the kick clean — sidechain feel without a compressor.
  3. Shaper (Max for Live, Suite): draw a curve with a small peak at 25% and a larger peak at 75% of the cycle. Sync 1/2. Map to Auto Filter frequency. This is a "two-syllable" wub.
  4. Modulate the Shaper's depth with a 2-bar sine from the LFO device so the gesture grows and shrinks across the phrase: movement inside movement, still slow.
At rates below 2 Hz the ear tracks the modulation contour as a gesture rather than as a texture; the shape's asymmetry is heard as intent. At wobble rates (4–8 Hz) the shape just changes the timbre of the modulation, which is why shape choice matters far more in deep dubstep than in brostep.

Filter + FM "wub" in Operator

Instrument: Operator · Level: intermediate · Genres: deep dubstep, DMZ-era

The warm, woody deep wub: low-ratio FM gives harmonics that grow with the modulator level; Operator's own filter on the same LFO rounds them off. FM depth and cutoff moving together sound like a mouth opening.

  1. Algorithm where B and C both modulate A. Osc A sine (carrier). Osc B sine, Coarse 1, −16 dB: ratio 1:1 gives saw-like harmonics as level rises. Osc C sine, Coarse 0.5, −30 dB: a sub-octave modulator adds a hollow, "wooden" undertone.
  2. Operator LFO: Sync, 1/2, sine, enabled for Osc B and the filter, Amount 50–70%.
  3. Filter LP 12, 450 Hz, Resonance 15–25%. Filter envelope amount +20%, attack 200 ms, decay 800 ms: each note opens a little on top of the LFO.
  4. Osc B's own envelope can loop (Loop mode) at a slow rate as an alternative modulator: attack 400 ms, decay 400 ms, sustain 0 — a free, unsynced wub per note.
  5. Saturator Analog Clip 3 dB after, HP 110 Hz.
Map Osc B level to velocity (a small amount, around 20%) so harder notes are brighter. Write the wub velocities in the clip as a second, slower layer of phrasing.

Wavetable low-formant wubs

Instrument: Wavetable · Level: intermediate · Genres: deep dubstep, 140 deep

Formant tables at low positions produce "oo" and "oh" vowels that sound like a human hum an octave above the sub. Scan them slowly and you get a wub that talks without any brightness.

  1. Osc 1: Formant category, a table that moves from "oo" to "ah" as position rises. Keep the position range in the lower third: "oo"–"oh" vowels are dark and round.
  2. Osc 2: Basics sine at −12 dB, Octave 0, for body. Sub oscillator off (the sub is separate).
  3. Filter 1 MS2 LP 600 Hz, Resonance 20%, Drive a little. Mod matrix: LFO 1 (sync 1/2, sine, retrigger) → Osc 1 Position +25%, → Filter 1 Frequency +30%. LFO 2 (2 bars, triangle) → LFO 1 amount +20% for slow swell over the phrase.
  4. Unison off or Classic 2 voices at a tiny amount; whatever width you add, Utility Bass Mono at 150 Hz afterwards.
The Vowel filter type in the 12.2 Auto Filter is an alternative: put it after a plain Operator saw-ish FM tone and modulate its vowel parameter with a slow LFO.

Drift filter wub (12 dB MS2-style low-pass)

Instrument: Drift · Level: beginner · Genres: deep dubstep, dub-influenced

Drift is CPU-light and analogue-unstable, which makes for a warm, slightly alive wub. Its 12 dB low-pass (the MS2-style mode) has a soft, rubbery resonance that suits slow movement.

  1. Osc 1 Shark Tooth (a soft, asymmetrical saw), Osc 2 Sine an octave down at −10 dB for weight in the 100–200 Hz zone.
  2. Filter: low-pass in its 12 dB mode, cutoff 350–450 Hz, resonance 30–40%. Key tracking around 50% so higher notes stay similarly bright.
  3. LFO: sync 1/2, sine, routed to filter frequency at a moderate amount. Mod matrix: Env 2 → filter +15% with a slow attack (300 ms) so each note blooms.
  4. Voice mode Mono, Legato on, Glide matched to the sub. Drift amount 10–20% for analogue pitch wander; it reads as "breathing" in the wub, never put it on the sub.

Pitch-bend sub drops

Instrument: Operator · Level: intermediate · Genres: deep dubstep, halfstep

A long sub note that bends down an octave (or a 5th) over 1–2 beats: the "floor falling away" moment before a switch or at the end of a phrase. Three ways: pitch-bend envelope, glide to a distant note, Operator pitch envelope.

  1. Set Operator's pitch-bend range to 12 semitones. In the clip, open the Pitch Bend envelope and draw a curve from 0 to −12 starting at beat 3 and ending at beat 4 of the last bar. Bend curved (hold Alt to bend the segment) so it drops slowly at first and fast at the end.
  2. Glide alternative: write F0 overlapping into F-1 with glide 300–500 ms for that one note only (automate Operator Glide time in the clip). Simpler to edit, less control over curve.
  3. Pitch-envelope alternative for repeated drops: Operator pitch envelope, amount −12 st (or −48% depending on display), attack 0, decay 600 ms, sustain at the bottom — every note dives. Use on a separate "drop" clip.
  4. High-pass at 22 Hz with 48 dB slope so the end of the bend (F-1 = 21.8 Hz) does not eat the limiter's headroom.
The target note is mostly inaudible (sub-20 to 30 Hz); the effect is the motion. Fade the volume down during the bend (clip volume envelope −6 dB) or the limiter will pump.

Octave sub jumps

Writing · Level: beginner · Genres: deep dubstep, steppers, 140 deep

A short note one octave above the root (82–130 Hz) cuts through small systems and acts like a percussion hit. Place it on the snare, on the "a" of a beat, or as the last note of a phrase.

  1. Jumps are separated notes (re-attack), not slides; keep a 10–15 ms attack so they do not click.
  2. If the low LP at 100 Hz is cutting the jumps, raise it to 140 Hz on the sub, or route the octave notes to the mid chain instead.
  3. Octave notes are 6 dB louder perceptually on small speakers; lower their velocity (if velocity → level is on) or the clip gain to keep the line even on big rigs.

Detuned "breathing" sub (beating)

Instrument: Operator · Level: advanced · Genres: halfstep, meditative, sound system

Two sines a fraction of a hertz apart beat against each other: the sub swells and fades slowly on its own. It is a slow amplitude modulation, fully mono-compatible, and it makes a single long note feel alive.

  1. Operator, the algorithm with all four oscillators in parallel (additive). Osc A sine, Osc B sine at the same coarse ratio, B level −3 dB.
  2. Fine-tune B slightly up: Operator's Fine is a ratio offset, so the beat rate scales with pitch. At F0 (43.7 Hz), a ratio offset of about 0.02 gives roughly 0.9 Hz beating; at 0.01 it is 0.45 Hz. Use Fixed mode on B (e.g. 44.5 Hz) if you want the same beat rate only on the root.
  3. Make B's level lower than A's (−3 to −6 dB) so the dips never go fully silent: depth of the "breath" = level ratio.
  4. Turn Operator's oscillator phase retrigger on so every note starts with both in phase (full level at the attack, beats after).
Detune at F0Beat rateFeel
0.4 HzOne swell per 2.5 sTidal, almost unnoticed
0.9 HzAbout 2 per barBreathing, matches a 1/1 wub
2.3 HzAbout 1/4 at 140Pulsing; starts to sound like tremolo
Beating is not phasing: both oscillators are summed in mono inside Operator, so mono fold-down is safe. Do NOT get this effect with two separate sub tracks or a stereo detune; that turns into phase cancellation on the system.

Resampled bass hits re-pitched in Simpler

Instrument: Simpler · Level: intermediate · Genres: deep dubstep, Tempa-style, 140 deep

Bounce a single wub or FM bass note (with its LFO movement, saturation and reverb tail) and replay it as a one-shot. The hit now has a fixed, characterful contour that you can re-pitch and sequence like a drum, cutting through the drop at specific moments.

  1. Record a single 1/2-bar wub note through its full chain (or right-click > Bounce to New Track). Trim to the attack and first swell.
  2. Simpler Classic mode, Warp off: transposing changes speed and length, so lower hits are longer and darker, higher hits snappier. That is the desired behaviour.
  3. Simpler amp envelope: Attack 2 ms, Decay 600 ms, Sustain 0, Release 80 ms. Filter LP with a little envelope so each hit has a bark.
  4. Sequence hits on the off-beats of the sub phrase as accents; or use them as the call while the sine is the response.
Make a 4-note "hit kit" in a Drum Rack: the same resample at 0, −5, −7 and +12 st with different filter settings, and play it on Push pads alongside the sub.

Tape-saturated sub harmonics (Saturator, Roar, Dynamic Tube)

Effects: Saturator, Roar, Dynamic Tube · Level: intermediate · Genres: deep dubstep, dubplate, 140 deep

Old dubplates had a soft roundness from tape and cutting: a little 2nd/3rd harmonic, softened peaks, no audible distortion. Recreate it on a parallel chain so the fundamental stays pure and phase-locked.

  1. Audio Effect Rack on the sub with two chains: Dry (Utility only) and Harmonics.
  2. Harmonics chain: Dynamic Tube Tube B (asymmetric, produces even harmonics: the warm 2nd), Drive 4–8 dB, Bias slightly positive. Then Saturator Soft Sine 3–5 dB for odd harmonics.
  3. Optional Roar Single stage Soft Sine 20–30% with Tone darkened: a rounder, more compressed harmonic texture.
  4. EQ Eight HP 80 Hz (24 dB) and LP 200–250 Hz on the harmonics chain: you keep only the 2nd and 3rd harmonics of the sub range. Utility −18 to −10 dB, mono.
  5. Check with Spectrum: the 2nd harmonic should sit 12–18 dB under the fundamental. Bypass the chain on a big system to confirm the fundamental is unchanged.
Saturating a full-range sub changes the fundamental's level and phase (the shaper compresses the peaks of the very waveform you are trying to keep clean). Generating harmonics on a copy and band-limiting them adds definition without touching the original, so the pressure on the system is identical and only small speakers notice the difference.

Dub reverb on the bass mids only

Effects: Hybrid Reverb, Echo · Level: intermediate · Genres: deep dubstep, dub-influenced

A reverb on bass is a disaster below 150 Hz and magic above it. Send only the wub mids (or a high-passed copy of the sub's harmonics) to a dark reverb, and the bassline gets a "room" around it while the low end stays dry and tight.

  1. Send the wub mid chain (not the sub) to a return. First device on the return: EQ Eight HP 200 Hz 24 dB, LP 2.5 kHz.
  2. Hybrid Reverb, algorithm Dark Hall, Decay 2.5–4 s, Pre-delay 30–50 ms so the dry wub attack stays clear.
  3. Optional Echo after the reverb, 1/4 dotted, low feedback, Duck on: the reverb's tail echoes only in gaps.
  4. Automate the send per phrase: dry for the first 8 bars of a drop, wet for the last 2 bars and in the "space" section.
  5. Utility Bass Mono at 200 Hz on the return as insurance.

Sub tuning per key

Reference · Level: intermediate · Genres: deep dubstep, sound system

Where the important scale degrees of each key fall in Hz decides which notes carry and which vanish. Write the anchor on the root, slides through the b2, answers on the 4th/5th — and check that none of those lands below 32 Hz or above 75 Hz for long notes.

Key (phrygian)Rootb24th5thb7Verdict
DD0 36.7Eb0 38.9G0 49.0A0 55.0C0 32.7 / C1 65.4Very deep; big rigs only; answer on A0
EbEb0 38.9E0 41.2Ab0 51.9Bb0 58.3Db0 34.6Heavy, reliable on scoops
EE0 41.2F0 43.7A0 55.0B0 61.7D0 36.7Classic; everything in the sweet zone
FF0 43.7Gb0 46.2Bb0 58.3C1 65.4 / C0 32.7Eb0 38.9Sweet spot; 5th either up or as drop
F#F#0 46.2G0 49.0B0 61.7C#1 69.3 / C#0 34.6E0 41.2Punchy; b7 below the root works
GG0 49.0Ab0 51.9C1 65.4D1 73.4 / D0 36.7F0 43.7Tight; fall to F0/D0 for weight
AA0 55.0Bb0 58.3D0 36.7 / D1 73.4E0 41.2G0 49.0Lighter; write the line below the root
  1. Pick the key from the table, then place the line so most sustained notes land 38–62 Hz.
  2. In keys above G, write "under" the root: the answers go down to the 5th or 4th below, not up.
  3. Tune kick and toms after choosing the key, not before (see the genre page's system-tuning table).

Mono and phase: kick vs sub, layers vs sub

Utility, Align Delay, Spectrum · Level: intermediate · Genres: all deep 140

On a stacked sound system a phase problem below 100 Hz is a hole in the floor. The sub must be mono, start at a consistent phase, and stay in phase with the kick and any layer sharing its octave.

  1. Operator oscillator phase retrigger on: every sub note starts at the same phase, so the kick + sub sum is identical every bar (no random "some bars are weaker" effect).
  2. Kick vs sub: solo both, play the downbeat. Flip the sub's phase with Utility (Phase Invert L and R). Keep whichever setting is louder in the 40–80 Hz zone. A short kick (150–220 ms) and a 10 ms sub attack reduce the overlap anyway.
  3. Layers vs sub: if a harmonic or wub chain has content below 120 Hz, phase-check it against the sub the same way, and fix offsets with Align Delay (sample mode) rather than EQ.
  4. Master: Utility Bass Mono at 150 Hz as a safety, then A/B Width 0 on the master. Nothing in the low end should change; if the wub loses body in mono, it was relying on stereo.
Never use Chorus-Ensemble, Auto Pan, stereo Unison or Haas delays on any chain that contains sub content. Even 1 ms between L and R creates cancellation at the bottom when a system sums to mono.

Processing chain

Order of priorities: pure sine first, harmonics as a parallel band, wub as a separate octave layer, one light bus compressor, infrasonic high-pass, mono. Sends from the wub only (dub reverb, throws). If you need the bass louder, raise the sub chain, not the limiter.

Rack

Genre variations

ContextSub writingWubGlide / tone
DMZ-era deep2–5 note phrygian lines, long anchors, b2 slidesMinimal or none70–90 ms, pure sine
Tempa-styleSparse, darker, syncopated stabs and gapsFiltered mid, moodyShort glide, more resampled hits
Deep Medi-styleReggae-shaped phrasing in sub registerWarm FM wub, 1/260–80 ms, soft harmonics
Modern 140 deepPrecise, octave flicks, call/responseFormant or FM wub with Shaper curvesExact glide, parallel harmonics for translation
Halfstep2–4 notes per 8 bars, huge pressure1/1 or 2-bar, or none100–120 ms, beating sub
Steppers / dubwiseRolling 8ths, beat 1 often emptyMinimal; dub reverb on mids30–50 ms, tight release
MeditativeBhairav / phrygian dominant, very long notesSlow formant "hum"120 ms, pure sine

Bassline library

Eight 8-bar sub lines at 140 BPM, all written for an Operator sine with glide 70 ms unless stated. Overlapping notes (tails) are slides; separated notes retrigger. Load them into a clip with Scale mode set to the stated key, then transpose with the clip's scale-aware transposition to try other roots from the tuning table.

1. Roots and air (E phrygian)

The DMZ-era default: almost nothing happens, and that is the point. Use as the first 8 bars of a drop with drums only.

2. Call and response (F phrygian)

One instrument, two registers. Colour 2 marks the response so you can see the conversation; in practice it is the same sine.

3. Steppers roll (G minor)

For steppers and Deep Medi-style dubwise sections with a four-to-the-floor kick. Keep note lengths short (2–3 steps) and release 60 ms or the pulse smears.

4. Halfstep pressure (F# phrygian)

Sub as weather. Works only with a near-pure sine and a fully mono chain; any harmonic content draws attention to the stasis.

5. Octave jumps on the snare (E phrygian)

Short octave notes (2 steps) are audible on every system because 82 Hz reads where 41 Hz doesn’t; they give the line definition without a second synth.

6. Slide descents (G phrygian)

Set Glide to 90–120 ms for this one; the chain notes are a 1/4 beat long, so the glide nearly fills them and the descent sounds like a pitch bend.

7. Dubwise reggae shape (F minor)

For dub-influenced and steppers sections. Leaving the downbeat to the kick is the sidechain-free way to get clarity between kick and sub.

8. Meditative Bhairav line (E)

Pair with hand drums, bells and a 6 s Dark Hall. Velocity fixed, glide 100 ms, the slower the better.

Common mistakes

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