Ultiverb: Free Reverb with Multiband Decay and Ducking

Ultiverb by Libelula Audio is a free algorithmic reverb with five space types, multiband decay and sidechain ducking. It gives you ways to shape both the tone of a reverb tail and how it responds to the source.

Currently available for Windows x64 as a VST3 plugin. Getting the free download requires an account, email verification and newsletter signup.

Get Ultiverb from Libelula Audio

What’s inside?

  • Room, Hall, Plate, Spring and Digital spaces
  • Separate decay balance for low, mid and high frequencies
  • Ducking triggered by the input or an external sidechain
  • Two four-band EQs on the wet path, before and after the reverb
  • Independent dry and wet saturation
  • Fluctuate controls for evolving stereo movement

Compatibility and download

You need Windows x64 and a 64-bit DAW that supports VST3. There is currently no macOS, AU or AAX build; the developer offers a Mac waitlist.

Follow the registration and email-verification steps on the official page, then access the plugin through your account’s downloads.

Read the Ultiverb manual