Download free Part of NULL JSFX 2.5: 113 plugins, free and open source (MIT). Easiest with NULL JSFX Hub.

Controls

  • Mid Gain−6 to +6 dB — Level of the Mid component.
  • Side Gain−6 to +6 dB — Level of the Side component.
  • ModeEncode / Decode — Encode turns L/R into Mid (left output) and Side (right output); Decode turns Mid/Side back into L/R.

Best uses

  • Mid/side processing with other plugins between an encoder and decoder
  • Adjusting the balance of centre and sides
  • Recording and decoding M/S microphone setups
  • Inspecting the mid and side content separately

Properties

Encode: L/R → Mid = (L+R)×0.707, Side = (L−R)×0.707 → Mid on left, Side on right. Decode: Mid (left) / Side (right) → gains → L/R. Encode followed by Decode is unity gain; zero latency.

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

Encode To Mid Side · Decode Subtle Widen · Decode Wide Mix · Decode Center Focus · MS Mic Wide Decode · MS Mic Narrow Decode

Try it

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