playgrid.ccRead tutorial

Tutorial 006 / Ableton Live

Build a Detuned Room Pad

A slowly swelling pad with three detuned saw waves, a gentle filter contour, ensemble modulation and reverb.

4 stepsOperatorLive 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

Blend three detuned saw waves

Load Operator in Live 12 Suite. The starting settings collect the controls for this first step. Select Algorithm 11, the far-right diagram with all four oscillators connected independently to the output. Enable A, B and C; disable D. Choose Saw D for each active oscillator and leave the filter off for this first stage.

Oscillator control A B C
Coarse 1 1 1
Fine 0 1 8
Level, displayed −6.0 dB −10 dB −6.7 dB
Fixed Off Off Off
Retrigger Off Off Off
Phase 0% 0% 0%
Feedback 0% 0% 0%
Level < Velocity / Key 0% / 0% 0% / 0% 0% / 0%
Frequency < Velocity 0 0 0

All three oscillators play in the same register. The small Fine offsets create beating between them. Operator's Fine numbers are frequency-ratio offsets, not cents. Keep oscillator frequency quantization on.

Give A, B and C the same amplitude envelope:

Envelope control Value
Attack 885 ms
Decay 1.21 s
Sustain / Peak 0 dB / 0 dB
Initial / End −∞ dB / −∞ dB
Release 3.00 s
Attack / Decay / Release slopes 0% / 100% / 100%
Loop mode None
Velocity-to-time / release modulation 0% / 0%

The slow attack rounds the beginning of a note. Maximum sustain keeps the tone alive while a key is held; the curved release fades after the key is lifted.

Operator saw oscillators and slow amplitude envelope
Operator saw oscillators and slow amplitude envelope · Select image to enlarge

Set Voices 6, Transpose 0 st, Tone 100%, Volume −9.0 dB, Spread 0%, Time 0% and Time < Key 0%. Disable Glide, Pitch Envelope and LFO. Keep global retrigger off, interpolation and antialiasing on, pan centered, and both pan modulation amounts at zero. Use a pitch-bend range of 2 semitones; leave other global controller destinations off.

Operator parallel routing and six-voice global settings
Operator parallel routing and six-voice global settings · Select image to enlarge

Play or download step 1

Next: Soften the saws with a filter contour →

Step 02 / 4

Soften the saws with a filter contour

Enable Operator's filter. Choose Lowpass, 24 dB, and the PRD circuit.

Filter control Value
Frequency 2.80 kHz
Resonance 1.0%
Drive 0.00 dB
Keyboard tracking 100%
Velocity tracking 0%
Envelope amount 15%
LFO modulation Off
Shaper Off

Set the filter envelope to Attack 92.0 ms, Decay 4.30 s, Sustain 72%, and Release 3.00 s. Use Initial 0%, Peak 100%, End 0%, Attack Slope 0%, Decay and Release Slopes 100%, and Loop None. Leave envelope velocity-time and release-velocity amounts at zero.

The filter opens ahead of the slower amplitude swell, then settles to a softer sustained tone. Full keyboard tracking carries the filter upward with higher notes. The low resonance keeps the contour smooth.

Operator PRD filter and slow contour
Operator PRD filter and slow contour · Select image to enlarge

Play or download step 2

Next: Spread the sound with ensemble modulation →

Step 03 / 4

Spread the sound with ensemble modulation

Add Chorus-Ensemble after Operator.

Control Value
Mode Ensemble
Rate 0.60 Hz
Amount 45%
Feedback 0%
Feedback inversion Off
Width 100%
High-pass filter Off
Warmth 0%
Output 0 dB
Dry/Wet 52%

Ensemble adds several moving, delayed versions of the sound. The wet blend widens the pad and makes the detuning less exposed. Keep feedback at zero for a smooth texture.

Chorus-Ensemble in Ensemble mode
Chorus-Ensemble in Ensemble mode · Select image to enlarge

Play or download step 3

Next: Add the room tail →

Step 04 / 4

Add the room tail

Place Reverb last.

Reverb control Value
Predelay 8.00 ms
Input Lo Cut / Hi Cut Off / Off
Size 65.00
Size smoothing Fast
Decay 3.70 s
Stereo 100.00
Density High
Reflect / Diffuse level 0 dB / 0 dB
Dry/Wet 50%
Early-reflection Spin On
Spin rate / Amount 0.30 Hz / 17.50
Shape 0.50
Diffusion High On, Shelf
High frequency / Gain 4.50 kHz / 0.70
Diffusion Low Off
Diffusion / Scale 60% / 40%
Chorus On
Chorus rate / Amount 0.02 Hz / 0.02
Freeze Off

The short predelay connects the room to the pad. High-frequency damping softens the reverberation while the long decay fills the space around sustained notes. Reverb's chorus adds a small amount of movement to the diffuse tail.

Reverb room, damping and modulation settings
Reverb room, damping and modulation settings · Select image to enlarge

Play or download step 4

Hold single notes to expose the slow beating, or play chords for a broad pad. Very short notes remain soft because they end before the amplitude attack reaches its peak. Velocity does not change the oscillator levels or filter cutoff in this patch.

Operator control reference · Chorus-Ensemble and Reverb reference

Audio & settings ↓

Audio & settings

Audio recordings and settings for this tutorial.