IoT 12: How to Build LV2 Plugins in ARM Linux

Last Updated on February 8, 2022

First Published on February 7, 2022

In the last post, I said Linux and Raspberry Pi musicians should use plugins with LV2 format. I made an effect plugins with LV2 format, and I build a plugins with LV2 format from an existing open-source project. If you use JUCE framework for your project, you can build a plugin with LV2 format in addition to VST3 format.

VST3 plugins aren't fit with Linux so far. I think plugins with VST3 format are for 64-bit Windows. I also guess the domestic LV2 is recommended in the Linux world that would concern the risk of the distributing system of plugins. Downloading executable binaries online is a typical risk to violate your computer.

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It's the same as the last post with Raspberry Pi 3B, IoT 11. I've also tested this procedure on a amd64 = x86_64 machine with Ubuntu 20.04.3 LTS.

I make an echo plugin mainly with LV2 format. The JUCE framework is downloaded from the fork of the LV2 porting project. I made tools written by Bash script to build plugins with JUCE CMake API.

cd ~/Desktop

git clone -b main

cd EarthEcho/builder_linux

# For more detail, read "builder_linux/".

./ vst3 lv2

# Install

sudo ./ lv2

# Uninstall

sudo ./ lv2 uninstall

I also made a fork of Magical8bitPlug2 to build a plugin with LV2 format. The process to make a plugin is the same as making my echo plugin.

You probably need to build Projucer to edit projects. To use Projucer with the GPL mode, "File" > "Sign in..." > "Enable GPL Mode". JUCE is preferred to be built with LLVM Clang for the portability crossing machines.

cd ~/Desktop

sudo apt update

sudo apt install clang

git clone

cd JUCE/extras/Projucer/Builds/LinuxMakefile

make CXX=clang++ CONFIG=Release

cd build


# Install the executable. The path /usr/local/bin is preferred.

You would ask me how to use them. LMMS version 1.2.2 adapts plugins with LV2 format through Carla. I recommend to use a MIDI sequencer such as MusE or Qtractor with Carla through Jack Audio Connection Kit and its GUI, QjackCtl. To control recording, Cadence Render would be a good choice. In the next post, I'll show you how to record sound with this environment, and the demonstration at last.

Please free to contact me by E-mail if you have any opinion or comment on this site.
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