playgrid.ccRead tutorial

Tutorial 011 / Ableton Live

Build a Swelling Pulse Pad

A warm Wavetable pad with detuned pulse waves, a slow PRD filter contour, stereo chorus, shaped lower harmonics and short filtered echoes.

4 stepsWavetableLive 12 Suite

Listen to the finished sound

Download WEBM ↓

Follow the synthesis steps in order. Use the audio examples and device screenshots alongside the settings.

Step 01 / 4

Shape the pulse-wave body

The signal flow is Wavetable → Chorus-Ensemble → EQ Eight → Delay. Load Wavetable and apply the starting settings, with both main oscillators on and the Sub off. Choose Basics → Pulse PW for both oscillators.

Control Oscillator 1 Oscillator 2
Position 33% 36%
Transpose 0 st 0 st
Detune 0 ct −7 ct
Gain −6 dB −9 dB
Pan Center Center
Oscillator effect Modern: Warp 0%, Fold 0% None

Set global Transpose −12 st, Poly 6, Classic Unison, 3 unison voices, Amount 4%, Glide 0 ms and device Volume −11 dB. The two pulse positions distribute harmonics differently; fine detuning and light unison introduce slow beating without a large pitch spread.

Enable Filter 1 as a 24 dB low-pass, PRD circuit, 1.36 kHz, Resonance 0%, Drive 0 dB. Keep Filter 2 off and filter routing Serial.

Envelope control Amp Env 2
Attack 1.95 s 1.71 s
Decay 2.10 s 2.37 s
Sustain 0 dB 14%
Release 2.40 s 2.10 s
Attack slope 0% 0%
Decay / release slope 50% / 50% 50% / 50%
Loop mode None None

For Env 2, use Initial 0%, Peak 100% and Final 0%. In Matrix, set Env 2 → Flt 1 Freq: 25. In MIDI, set Key → Flt 1 Freq: 100, Vel → Amp: 50, and PB → Pitch: 2 st. Key tracks the played note, Vel controls amplitude from velocity, and PB supplies pitch bend. Set every other modulation connection to zero. Leave global modulation amount at 100% and Time at 0%.

The amplitude envelope makes held notes bloom. The filter opens during the swell, then settles toward a softer sustained tone. Higher notes receive more filter opening, and stronger velocity raises the instrument output. Short notes end before the full swell develops.

Wavetable oscillator 1, filter and amplitude envelope
Wavetable oscillator 1, filter and amplitude envelope · Select image to enlarge
Wavetable oscillator 2 and filter envelope
Wavetable oscillator 2 and filter envelope · Select image to enlarge
Wavetable envelope modulation routing
Wavetable envelope modulation routing · Select image to enlarge
Wavetable MIDI modulation routing
Wavetable MIDI modulation routing · Select image to enlarge

Hear step 1 — WebM/Opus

Next: Add slow chorus movement →

Step 02 / 4

Add slow chorus movement

Follow Wavetable with Chorus-Ensemble in Chorus mode. Set Rate 0.65 Hz, Amount 65%, Delay Time 7 ms, 2 delay taps, Width 100% and Dry/Wet 30%. Keep Feedback, Warmth, Shape and Offset at zero, high-pass off, and Output at 0 dB.

The delayed voices move around the sustained pulse tone, widening it and adding gentle pitch motion while the dry body remains prominent.

Chorus-Ensemble settings
Chorus-Ensemble settings · Select image to enlarge

Hear step 2 — WebM/Opus

Next: Balance the lower harmonics →

Step 03 / 4

Balance the lower harmonics

Follow the chorus with EQ Eight in Stereo mode, with Oversampling off. Enable bands 1–4 and disable bands 5–8.

Band Type Frequency Gain Q
1 Low shelf 75 Hz −5 dB 0.71
2 Bell 160 Hz +2 dB 0.80
3 Bell 392 Hz +4.5 dB 4.00
4 Bell 523 Hz −2.5 dB 4.00

Use Scale 100%, Adaptive Q On, and Output 0 dB. The low shelf restrains the deepest notes; the broad 160 Hz lift adds body. The narrower middle bands emphasize one region and soften another. These EQ frequencies stay fixed as notes change, giving different registers slightly different coloration.

EQ Eight settings
EQ Eight settings · Select image to enlarge

Hear step 3 — WebM/Opus

Next: Add a short, filtered stereo tail →

Step 04 / 4

Add a short, filtered stereo tail

Finish with Delay. Turn Link off, use unsynced time controls, and set Left 300 ms, Right 325 ms, Feedback 12% and Dry/Wet 14%. Enable its filter at 900 Hz, Width 5.00. Use Fade smoothing, with Ping Pong and Freeze off. Set both LFO modulation amounts to zero.

The unequal delay times spread the echoes across the stereo field. Low feedback keeps the repeats brief, while the filter makes them softer than the direct pulse tone.

Delay settings
Delay settings · Select image to enlarge

Hear step 4 — WebM/Opus

Hold notes to let the filter and amplitude swells develop. Short touches produce softer tones; overlapping notes let the releases and stereo echoes blend.

Audio & settings ↓

Audio & settings

Audio recordings and settings for this tutorial.