New here? Start with Ambisonics in REAPER

A method for capturing and reproducing three-dimensional sound — spatialise audio for any speaker layout, any room. The ICST plugins bring this to REAPER, free and open source, with studio-tested workflows from ZHdK Zürich.

If you are new, follow the guided start path. If you already know the plugins, jump straight into Quick Start or the docs.

Plugin Overview

New in v3.2: What’s New · GitHub Releases


Free and open-source spatial audio tools for REAPER — from first setup to advanced OSC control and DAW integration.

 Guided 4-step start path

🎧 For Beginners

Fast entry into setup, signal flow, and your first spatial mix in REAPER.

⚙️ For Production Work

Technical depth for repeatable pipelines, OSC control, and robust session templates.

🎼 Composing in Ambisonics

Spatial thinking for composers — analytical listening, movement and depth as compositional parameters, studio workflows.

🎛️ Ambisonics Plugins for REAPER

Encode, decode, and spatialise audio directly in your DAW. Encoder, decoder, monitor, and more — the complete ICST suite.

ICST Ambisonics Plugins in REAPER

🧊 Ambisonics Tools for Max/MSP

For live spatialisation, algorithmic sound, and extending workflows beyond REAPER — runs natively in Max 8.

ICST Ambisonics Tools for Max/MSP

For ZHdK residents, composers and studio visitors — listening sessions, residency documentation and studio resources.

 Resident guide — 4 steps before & during your stay

🎧 ASCOLTA

Regular acousmatic listening sessions and concerts at ZHdK — spatial works performed live, open for audience.

🎼 Residencies

Artist-in-residence programme at ICST — profiles, projects and documentation from past and current residents.

🖥️ Composer Studio

Setup documentation, equipment, speaker configurations and studio cases from the ICST Kompositionsstudio.

Latest Posts

#03 ASCOLTA ACOUSMATIC LISTENING SESSION

Audience: Composer, Student, Researcher, Studio visitor. Concert Tuesday, October 4, 2022, 18:00 Toni-Areal, ICST-Kompositionsstudio (3.D02, Ebene 3) Pfingstweidstrasse 96, 8005 Zürich Free admission GRANULAR Nicos Stavropoulos, January 12, 2018 - January 19, 2018 Karst Grotto (2018) The title was selected based on its onomatopoetic qualities and its direct reference to landscape qualities whose geological spatial structures and processes reflect the sound world of the work. The recordings of the source materials were realized with small electret microphones in a 5.1 Polyhymnia Pentagon configuration.

ICST KOMPOSITIONSSTUDIO SOFTWARE

Audience: Composer, Student, Researcher, Studio visitor. Software and plugin environment for production at the ICST Mac Pro. Recommended DAWs For Ambisonics and multichannel production, ICST primarily works with Reaper and Ardour. Reaper Ardour Spatial Audio Stack Core Ambisonics toolchain across ICST plugins, IEM, ATK, Spat, and related ecosystems. ICST Plugins ICST Max Tools Downloads Software Inventory (Accordion) Audio Analysis & Editors RX iZotope Sonic Visualiser SPEAR TwistedWave GRM Tools Complete Ambisonics & Spatial Audio ICST Ambisonics Plugins ICST Ambisonics Tools (Max) IEM Plugin Suite ATK Ambisonics Toolkit ambiX Harpex Panoramix / Spat mcfx DAW, Programming, and Utilities Ableton Live 12 Reaper Ardour Logic Pro Max SuperCollider Csound Faust Pd Dante Controller / Via / Virtual Soundcard Notation, IRCAM, and OSC Tools Sibelius MuseScore Finale IRCAM SPAT / PANORAMIX / OPENMUSIC IanniX INScore ToscA Further Links Equipment Regie Speaker Settings Downloads Residencies

ICST MULTIENCODER – GROUP ANIMATION

Group Animation Level: Intermediate | Audience: Composer, Live performer. The ICST Multi-Ambisonics Encoder v.2+ features a Group Animation tool for dynamically manipulating grouped audio sources in the Radar Display. By selecting a group point and holding Option (Alt) on Mac, you unlock advanced functions like group animation and group stretch, enabling synchronized movement and transformation of multiple sources for enhanced 3D spatialization. 📺 Tutorial: Points and Radar (3:15) Simple animation of a group

#04 ASCOLTA ACOUSMATIC LISTENING SESSION

Audience: Composer, Student, Researcher, Studio visitor. Concert Tuesday, December 13, 2022, 18:00 Toni-Areal, ICST-Kompositionsstudio (3.D02, Ebene 3) Pfingstweidstrasse 96, 8005 Zürich Free admission GLOCKEN ‘Ringing in’ with the church bells of the Diessenhofen/TG Reformed Church. It is mentioned for the first time in the document of 27.03.757. Its main patron is St. Dionysius (1517 “Churches Sant Dionysius). The five bells were cast in 1883 by the bell foundry Keller in Zurich. and produce a pure B major chord.

ICST KOMPOSITIONSSTUDIO REGIE

Overview of the ICST Composition Studio Audience: Composer, Student, Researcher, Studio visitor. Status April 2023 Direction Table A: The LSB is the central control panel for routing and managing all audio components. B: The Extron panel provides convenient control of all video and power components. Work With Your Laptop Prepare audio and video drivers before arriving at the studio. RME MADI USB Driver DisplayLink Driver Quick Start Guide Control Room Navigation Jump directly to routing, speaker settings, and video control sections.

ICST AMBIPLUGINS & GRAPES – 3D CONTROL

Level: Intermediate | Audience: Spatial performer, controller-based workflow user. Grapes 3D Control is a handy addition to the ICST Ambisonics plugins. Grapes come as a standalone and VST3 and can be operated directly in the DAW (Reaper) in sync. Advantages of Grapes 3D Control A major advantage of this method is that the 3D spatial sound control does not have to be recorded in the DAW. Instead, it is sent to the ICST AmbiEncoders via OSC from Grapes. This means that the spatial design remains flexible and can also be interpreted with other spatialization tools such as LISA, Dolby Atmos or binaural audio playback.

#05 ASCOLTA ACOUSMATIC LISTENING SESSION

Audience: Composer, Student, Researcher, Studio visitor. Concert Tuesday, March 14, 2023, 18:00 Toni-Areal, ICST-Kompositionsstudio (3.D02, Ebene 3) Pfingstweidstrasse 96, 8005 Zürich Free admission Field-Recordings & Soundscapes Philip Samartzis (ICST Artist in Residency 2019) Atmospheres & Disturbances Dur: 28.30 In 2019, Philip received a grant from the Swiss National Science Foundation to conduct research at the High Altitude Research Center on the Jungfraujoch. This is the first time either organization has supported an artist-researcher under their respective programs, demonstrating a growing awareness of art’s ability to advocate for rare and endangered ecologies. Philip’s high-alpine research has been featured on DW Radio, Swiss Info, and Les Temps news services and exhibited in China and Japan (2019) and Switzerland (2021). It was also featured in an exhibition titled Sampling the Future (2021) at NGV Australia.

ICST KOMPOSITIONSSTUDIO AMBISONICS SETTING

Audience: Composer, Student, Researcher, Studio visitor. Ambisonics - speaker - setting and coordinates Example for „ICST_AmbiDecoder 3.1.0" VST3 (2025) The Studio Room is nearly 7m length, 7m bright and 7m hight. Speaker-Coordinates for the “ICST Composer Studio” Coordinate: Multi-Decoder-Setting (example) Speakers 1 - 17 –> channels 1- 17 (Speaker 17 = voice of God) Sub/LFE –> channel 18 ICST Ambisonics Plugins Dokumentation: ICST Ambisonics Plugins Home ICST Ambisonics Plugins Blog Downloads: → Downloads

ICST AMBIPLUGINS & GYROSC

ICST MultiEncoder and iOS GyrOSC.app GyrOSC is a lightweight utility that sends motion sensor data (from your iPhone, iPod Touch, or iPad) over a local wireless network to any OSC-compatible host application. It allows you to control live audio or video applications using your device’s built-in gyroscope, accelerometer, compass, and altimeter. The following GIF demonstrates how the ICST AmbiEncoder receives OSC data from the GyrOSC app. How It Works: This tutorial provides a step-by-step guide on using the iOS app GyrOSC with the ICST Ambisonics Encoder.

#06 ASCOLTA ACOUSMATIC LISTENING SESSION

Audience: Composer, Student, Researcher, Studio visitor. Concert Tuesday, April 4, 2023, 18:00 Toni-Areal, ICST-Kompositionsstudio (3.D02, Ebene 3) Pfingstweidstrasse 96, 8005 Zürich Free admission Zbigniew Karkowski (Poland/Japan) Title: _no name_ Dur: 60' Description: Zbigniew Karkowski (Poland/Japan) The Polish composer Zbigniew Karkowski, who died all too soon in 2013 and lived in Japan, is and remains in a league of his own. In his almost elegiac pieces of micro-structured noise and rhythm settings, his entire visionary range comes to the fore, whether his pieces were created with a laptop or with electroacoustic means. He studied composition at the National Academy of Music in Gothenburg, Sweden, aesthetics of modern music at the University of Gothenburg, and computer music at the Chalmers University of Technology. After completing his studies in Sweden, he studied sonology for a year at the Royal Conservatory of Music in The Hague, The Netherlands. For over 20 years, he was active in the field of experimental electronic music, composing pieces for a full orchestra, an opera, and several chamber music pieces. In 2008 Zbigniew Karkowski was a guest at ICST and realized the piece ‘No name’ in Ambisonics. ICST performed this piece on Friday 03.10.2008 at the Walchenturm in Zurich. We can expect lively noise attacks and sizzling groans. His music is a timeless oeuvre, disturbing and soothing, eruptive and static. Zbigniew Karkowski im Walchenturm Zürich (2008)