The setup and the execution of the electroacoustic part of this work requires a Computer Music Designer (Max expert).

Performance date: Jan. 13, 2014 - First performance

Documentation date: May 23, 2013

Version state


Validation date: May 3, 2018

Executions dates of this version

  • Jan. 13, 2014,

Version documentalist

  • lemouton (

Version realisation

  • Julien Aléonard (Sound engineer)
  • Serge Lemouton (Computer Music Designer)

Version length

60 mn

No other version available

Detailed staff

  • alto flute, oboe d'amore, basset horn, bassoon, horn, trumpet [en ut] , trombone
(Detailed staff comes from Brahms, send mail to for correction.)

Electronic equipment list

Computer Music Equipment

  • 1 MacBook Pro - Apple Laptops (Apple)
    OS X 10.6
  • 6 MacPro - Apple Desktops (Apple)
    Concert, HOA, WFS1, WFS2, WFS3, WFS4,
  • 7 iPad - Tablets (Apple)
    one for each musician (touchOSC)
  • 1 SSD - SSD
  • 1 Live - Music Software (Ableton)
    version 8.4 32 bits
  • 1 Max 5 - Max (Cycling74)
  • 2 Fireface 800 - Sound Board (RME)
  • 1 BCF 2000 - MIDI Mixer (Behringer)

Audio Equipment

  • 7 Loudspeaker - Loudspeakers
    instrument sound reinforcement
  • 1 WFS Espro - WFS (Ircam)
    256 loudspeakers
  • 1 HOA Espro - Ambisonie (Ircam)
    75 loudspeakers
  • 1 DM2000 - Digital Mixers (Yamaha)


  • Jan. 13, 2014, France, Paris, Ircam, Espace de projection


  • l'Oiseau Prophète


  • Serge Lemouton

Work length

  • 60 mn
Download all files
File Author(s) Comment
Download [1.1 MB] Score Jacques Lenot Septuor score in Finale
Download [519.9 KB] Patch Serge Lemouton Final version of the Live session and spatialisation patches (updated for the concert)
Download [18.1 GB] Patch ISIS_UND_OSIRIS-sounds.dmg Serge Lemouton
Download [368.7 KB] Setup Stage setup Pascale Bondu
Download [2.0 MB] Score Serge Lemouton Live session screenshots


Stage Setup

The 7 musicians are located around the audience, slightly and locally amplified

Audio Setup

This piece makes use of the complete Espace de Projection sound diffusion system (HOA + WFS) for a grand total of 339 loudspeakers.

The electroacoustic part of Isis und Osiris consists in a 24-channel soundfile, sent to the HOA and WFS systems :

  • 4 4-channels virtual orchestras 
  • 4 2-channel percussion-type sound

this channels are played from Ableton Live (on the Macbook Pro) to Spatialisateur Max patches (Mac Pro HOA, WFS1, WFS2, WFS3 and WFS4).

Hardware Setup

Macbook Pro send the 24 audio channels to Yamaha DM2000 with 2 RME Fireface 800 (ADAT connexions)


The Yamaha DM2000 mixer sends the audio signals to the Mac Pro CONCERT (ADAT connexions). 

The Mac Pro CONCERT plays a simple Max patch (Isis-matriceMADI.maxpat) to convert audio signal from ADAT to MADI.

Mac Pro CONCERT send audio signal to 5 Mac Pro : HOA, WFS1, WFS2, WFS3 and WFS4 (MADI connexion). 

Each Mac Pro (HOA, WFS1, WFS2, WFS3 and WFS4) runs a Max spatialisation patch  (I**sisSPAT-6-espro.maxpat,WFS_OSIRIS_SUD2_4sources.maxpat,WFS_OSIRIS_NORD4_4sources.maxpat…”)

MIDI Configuration

In Live preferences set the surface control, input and midi output to “BFC2000”

AUDIO Configuration

44,1 Khz

out : Fireface 800 1 (FF800_1) + Fireface 800 2 (FF800_2) (56 in/56 out)

In configuration output, select :

from 1/2 to 15/16 (16 channels to HOA) (FF800_1)

from 29/30 to 35/36 (8 channels to WFS) (FF800_2)

LIVE SESSION “OsisEtosiris-concert2013O4D”

Audio Outputs

Three groups are send from Ableton Live to the HOA sound diffusion system (16 channels, from 1/2 to 15/16).

  1. Synful
  2. Isis
  3. Vienna

The last group Percu is sent to the Wave Field Synthesis system (8 channels, from 29/30 to 35/36)

MaxForLive Patches

ISIS-spatControlcontrols some spatialisation parameters in the Mac Pro patch using the OSC protocol:

HOA : udpsend

WFS1 : udpsend

WFS2 : udpsend

WFS3 : udpsend

WFS4 : udpsend

ISIS.timeCodeViewer send visual cues to musicians (current bar number and beats are sent to 7 iPads)

Direct to disk

To play the 24 audio channels, a fast hard disk is required (such as an external SSD / thunderbold)

WFS and HOA Software setup



MaxMSP “isisSPAT-6-espro”

MaxMSP audio input : MADI (du Mac Pro concert)

Audio output : MADI + FF400 (FF400 pour les sub)

Level : -12 dB



MaxMSP “_“

MaxMSP audio input : MADI (du Mac Pro concert)

Audio output : MADI

Level : _ dB



MaxMSP patch : WFS_OSIRIS_SUD2_4sources

MaxMSP audio input : MADI (du Mac Pro concert)

Audio output : MADI

Level : -6 dB



MaxMSP “_“

MaxMSP audio input : MADI (du Mac Pro concert)

Audio output : MADI

Level : _ dB



MaxMSP patch : WFS_OSIRIS_NORD4_4sources

MaxMSP audio input : MADI (du Mac Pro concert)

Audio output : MADI

Level : -6 dB

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This documentation is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Version documentation creation date: May 23, 2013, 7:01 a.m., update date: Jan. 17, 2022, 6:42 p.m.