Download free Part of NULL JSFX 2.6.1: 113 plugins, free and open source (MIT). Easiest with NULL JSFX Hub.

Listen

The same music with the Octave Up Double preset and without the plugin. Switch while it plays.

Controls

  • Octave−2 to +2 — Shift in whole octaves.
  • Semitones−12 to +12 — Shift in semitones, added to the octave setting.
  • Fine−50 to +50 cents — Fine tuning in cents.
  • Mix0 to 100% — Blend between dry and shifted signal.

Best uses

  • Octave doubling
  • Simple parallel harmonies
  • Detune and thickening with Fine
  • Creative sound design

Properties

Input → 60 ms delay line read by two taps in opposite phase with Hann crossfades → Dry/Wet Mix → Output. Total shift = Octave × 12 + Semitones + Fine/100 semitones; the window-based method adds some smearing on transients.

Formats

  • JSFXJSFX for REAPER, with REAPER's own sliders
  • GFXJSFX GFX for REAPER, with its own interface
  • VST3VST3 for any DAW
  • CLAPCLAP for any DAW

Factory presets

Octave Up Double · Octave Down Thick · Fifth Above Harmony · Fourth Below Harmony · Minor Third Harmony · Vocal Thickener · Full Octave Down · Full Octave Up

In the FX chains and Rack presets

Fragment Gate · Mutant Space · Psychedelic Echo

See every FX chain

Try it

Try it on orOS StudioAdd it to a track in your browser, with its own interface. Nothing to install.