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Real-time 2D spectrogram plugin (LV2, VST and Jack)
C++ C Makefile
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Wolf Spectrum

Build Status Chat on Matrix

Wolf Spectrum

Wolf Spectrum is a spectrogram plugin. It can be built as an LV2 or VST plugin and as a standalone Jack application.


  • Supports both log and linear frequency scaling
  • Resizable UI


You can find some precompiled plugin binaries in the Releases tab. Some packages are also available for Ubuntu and Arch Linux:


Download the plugin from the pdesaulniers/wolf PPA:

sudo apt-add-repository -y ppa:pdesaulniers/wolf
sudo apt-get update
sudo apt-get install wolf-spectrum

Arch Linux

A git package is available in the AUR.

Build manually

First, clone the repo (note the "--recursive" argument):

git clone --recursive
cd wolf-spectrum


BUILD_VST2=true BUILD_LV2=true BUILD_JACK=true make

Prepend WIN32=true or MACOS=true to the command if applicable.

All plugin builds will then be placed in the bin folder. Copy them to their appropriate place so that your plugin host can find them, and you're done :)


This project uses git submodules. Thus, to update your local copy of the repo, you need to run the following commands:

git pull
git submodule update

You should then be able to build the plugin with the most recent changes.

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