A vocal synth pad is created by recording sustained vocal parts and processing them so they function like an ambient electronic keyboard pad rather than lyrical lines. The vocals are heavily reverberated, compressed, or tuned to blend individual voices into a continuous harmonic drone. This wash sits in the background of an arrangement to provide steady chordal accompaniment.
How the songs in the archive use it
In Sympathy for the Devil, repetitive backing vocals serve as a hypnotic pad or drone beneath the lead vocal and guitar solo. Drivers License applies heavy Valhalla VintageVerb, compression, and tuning to low-mixed vocal layers in the bridge to create a swelling harmonic synth wash.
How to do it in Logic Pro
Transform sustained vocal phrases into a lush, synth-like background drone using chorus and expansive reverb. Use this technique behind verses or ambient sections to fill harmonic space without clashing with the lead vocal.
Record or import sustained vowel sounds, such as 'oohs' or 'aahs', across a chord progression on an audio track.
Insert Ensemble on the track to diffuse distinct vibrato and smear the individual vocal takes into a cohesive choir.
Insert ChromaVerb after Ensemble to generate a large, continuous ambient wash.
Engage freeze on the reverb or dial in a long decay time to sustain the vocal bed continuously.
Plug-in
Control
Value
Listen for
Ensemble
Voices
6
dense modulation smoothing vocal textures together
Ensemble
Output Mix
80 %
chorus-heavy, synth-like detuned character
ChromaVerb
Room Type
Synth Hall
spacious, reflective synthesized reverb space
ChromaVerb
Decay
8.00 s
extended, sustained ambient vocal tail
ChromaVerb
Dry/Wet
60 %
deep atmospheric wash pushing vocals into the background
A general method with Logic Pro's own plug-ins. Control names are checked against Apple's manual; the values are starting points, so adjust them by ear.
Songs that use it (1)
What each track sheet's analysis found, with the sheet's own score. Analysis, not verified credits.
Sympathy for the Devil by The Rolling StonesTrance-Inducing Vocal Layering: [The "woo-woo" backing vocals serve almost as a synthesizer pad or drone, establishing a hypnotic, tribal atmosphere that contrasts with traditional 1960s rock backing vocal conventions.]Sheet score 10/10 · Source given: Production analysis · Open the full track sheet
Want these sounds in your own mixes? Every song above has a full track sheet with its signal chains and a step-by-step recreation for your DAW. Open Track DiveAll techniques