MATRIXSYNTH: Using Reaper DAW and software synthesisers on the Raspberry PI 400

Thursday, January 14, 2021

Using Reaper DAW and software synthesisers on the Raspberry PI 400


Floyd Steinberg

"Using Reaper DAW and software synthesisers on the Raspberry PI 400 - table of contents below! The Raspberry PI 400 has enough CPU power to run multiple virtual synths and effects simultaneously. Let's waste these resources trying to run the ARM version of Reaper with software synths and effects. Reaper on ARM Linux does not have VST or LV2 compability, but we can use Linux' audio subsystem to route our audio and MIDI signals from one standalone app to the next, using even WebMIDI apps within our DAW.
Note: everything shown here will also work on all the other Raspberry PIs. Reaper is a very lean software, so it's a perfect match for the PI. If only it would support LV2 plugins. :-)

Table of contents
00:21 Introduction
01:00 Hardware overview (you should also buy the PSU)
02:43 Downloading and installing Reaper
03:19 solving the "there was an error opening the audio hardware" problem
03:47 ... and the "no midi devices found" problem (a2jmidi)
04:50 ... and the "no plugins available" problem (synthv1 and qjackctl)
05:14 how to set up the midi and audio routing in qjackctl and Reaper
05:54 armed with that knowledge, recording vocals & a synth track
06:54 adding an external webaudio reverb effect to a track recorded previously ("pavucontrol" and pulseaudio-module-jack)
08:42 recording a track with that reverb effect
09:51 conclusion / bye bye"

Support: https://www.paypal.me/alexselck

Reaper https://reaper.fm
Raspiaudio https://www.raspiaudio.com/
Raspberry PI 400 https://www.raspberrypi.org/products/...

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