Ableton/Live/UG/29 Audio Effect Reference/08 Chorus-Ensemble
- Chorus-Ensemble is a two-delay-line chorus with an optional three-line mode, from light thickening through flanging and vibrato to string-ensemble chorus.
- Buttons in the display choose the mode; the display draws the active delay lines.
- Chorus — two modulated delays added to the input for classic light movement
- Ensemble — modeled on a thick 1970s three-line chorus pedal; three delays with evenly spaced phase offsets for a richer, smoother chorus
- Vibrato — modulates pitch more strongly with no added delayed copy; the wave morphs from sine to triangle, which can make a police-siren sound
- Every mode has an optional high-pass filter: the modulation is reduced below the High-Pass Frequency (20 Hz to 2 kHz).
- Chorus and Ensemble have Width: stereo width of the wet signal, 0% mono, 100% even, 200% twice as loud in the sides as in the middle.
- Chorus only:
- Delay Time — Auto scales the delay with the modulation amount; a fixed value keeps it steady, avoiding phasing and pitch wobble on bass or guitar
- Taps — one or two taps; one tap gives a simpler, broader chorus like classic pedals
- Vibrato only: Offset (left/right phase; 180° is fully opposite) and Shape (0% sine to 100% triangle).
- Modulation:
- Rate — speed in Hz; drag in the display or turn the dial
- Amount — depth of delay-time modulation
- Feedback — output fed back to input for a more extreme, brighter sound that keeps echoing after playback stops. Feedback Invert gives a hollow sound at high feedback. Not available in Vibrato.
- Global:
- Output — output gain
- Warmth — light distortion and filtering; more gives crunch
- Dry/Wet — set to 100% on a return track; not available in Vibrato
- On dry guitar, Ensemble at 1–1.8 Hz with Amount 100% gives a surf-rock sound.
- With Feedback above 90%, automating Feedback Invert produces bursts of decaying oscillation.