Overview
Quick Start: ICST Ambisonics Plugins in REAPER
Installation
Track Templates
Step by Step Setup
How it Works
ICST Encoders
ICST Decoder
ICST MultiDecoder
Render B-Format in REAPER
OSC
Best Practices
Shortcuts
Downloads
What's New
Installation
Level: Beginner | Audience: Composer, technician, student, studio user.
Use this page when you want a clean plugin installation before opening templates or building a REAPER session from scratch.
Before you start
For a reliable installation, make sure you have:
- a current version of REAPER
- the SWS / S&M extension
- ReaPack
- access to the current ICST plugin release package
Recommended next step after installation:
- Quick Start for the fastest first session
- Step by Step Setup if you want to build the routing manually
Install on macOS
- Download REAPER for Apple Silicon or Intel from reaper.fm.
- Install and open REAPER once.
- Close REAPER again.
- Install the SWS / S&M extension from https://www.sws-extension.org/.
- Install ReaPack from https://reapack.com/.
- Follow the ReaPack installation guide: https://reapack.com/user-guide#installation
- Download the current ICST Ambisonics Plugins release from https://github.com/schweizerweb/icst-ambisonics-plugins/releases.
- Run the macOS installer.

Install on Windows
- Download REAPER for Windows from reaper.fm.
- Install and open REAPER once.
- Close REAPER again.
- Install the SWS / S&M extension from https://www.sws-extension.org/.
- Install ReaPack from https://reapack.com/.
- Follow the ReaPack installation guide: https://reapack.com/user-guide#installation
- Download the current ICST Ambisonics Plugins release from https://github.com/schweizerweb/icst-ambisonics-plugins/releases.
- Run the Windows installer or extract the release to the standard VST3 location if the package requires manual placement.

Installed files and folders
Typical installation targets:
/Library/Audio/Plugins/VST3/Library/Audio/Plugins/Components/Library/Audio/Plugins/LV2(experimental)Users/Shared/AmbiPluginsTemp/ProjectTemplatesUsers/Shared/AmbiPluginsTemplatesTemp/TrackTemplates
Templates usually include:
ICST_AmbiPlugins_MonoEncoder.RPPICST_AmbiPlugins_MultiEncoder.RPPICST_AmbiPluginsICST_AmbiPlugins_3rdParty
If the plugins do not appear
Check these points first:
- REAPER has been restarted after installation.
- The SWS extension is installed correctly.
- ReaPack is installed correctly.
- The plugin files were placed in the expected VST3 / AU / LV2 directories.
- The ICST plugins appear in the REAPER FX Browser after a plugin rescan.
If the templates are missing, also check the shared template folders listed above.
Related references
- Project wiki: https://github.com/schweizerweb/icst-ambisonics-plugins/wiki Installation video: ICST Ambisonics Plugins – 01 – How to Install