j.mp3 labs

Free sidechain ducking plugin

Pulse Ducker

Tempo-synced ducking.
Your curves. Your sound.

FreeVersion 1.0.1

Installation & updates

The updated interface is shown here. Downloads currently install version 1.0.1.

Updated interface preview Click to enlarge
macOS
Universal · VST3 + AU
Windows
64-bit · VST3
Download size
Mac 6.6 MB · Windows 2.5 MB
License
Free for any use

Shape your signal

Movement, under control.

Make room around a kick drum, add rhythmic pumping to pads, or reduce low-end overlap with a free sidechain ducking plugin. Choose a volume curve and sync it to your session, or trigger it from MIDI or audio.

Tempo-synced pumping

Lock ducking to the host grid without setting up a sidechain.

16 ducking curves

From smooth pumping to sharp gated shapes, with length and slope controls to make them yours.

MIDI retrigger

Restart the curve from any MIDI note for precisely placed movement.

Audio triggering

Trigger from the input or a sidechain feed using an adjustable threshold.

Full or low band

Shape the whole signal, or duck below the crossover while leaving the top end untouched.

Fine-tune the shape

Dial in depth, mix, length, slope, threshold, crossover and output gain.

Get started

Installation & updates

macOS Universal installer · VST3 + AU
  1. Close your DAW and open the downloaded installer.
  2. Follow the installer steps. It installs Pulse Ducker into the system VST3 and Audio Units folders.
  3. Restart your DAW, or rescan plugins, and load Pulse Ducker on an audio track.
Windows 64-bit VST3
  1. Close your DAW and unzip the download.
  2. Copy the Pulse Ducker.vst3 folder into C:\Program Files\Common Files\VST3.
  3. Restart your DAW, or rescan plugins, and load Pulse Ducker on an audio track.
Updating an existing installation

Close your DAW first. On macOS, run the newer installer. On Windows, replace the existing Pulse Ducker.vst3 folder in the same location. Restart your DAW when installation is complete.

Need a hand? Contact the lab.

Pulse Ducker

Full preview of the updated Pulse Ducker interface.

Preview of the upcoming interface update. The current public download is version 1.0.1.

j.mp3 labs

Small, focused audio tools from the james.mp3 signal chain.

Pulse Ducker shapes movement with tempo-synced ducking and customizable curves.

The interface shown here previews the upcoming Pulse Ducker update. The current public download is version 1.0.1.

Contact the lab VST is a registered trademark of Steinberg Media Technologies GmbH.