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

Version Information

Performance date
June 19, 2023
Documentation date
February 5, 2024
Version
Premiere
Status
valid
Validation date
April 18, 2024
Documentalist
Robin Meier (Robin.Meier@ircam.fr)
Realisation
  • Robin Meier Wiratunga (Computer Music Designer)
  • Clément Cerles (Sound engineer)
Length
16 min
Upgrade motivation
premiere

Other Versions

Tape Version
valid
February 7, 2024

Detailed Staff

Detailed staff comes from Brahms, send mail to ressources-contenus@ircam.fr for correction.

Channel Details

Number of input channels
12
Number of output channels
9

Electronic Equipment List

Audio Equipment

8 Loudspeaker
Loudspeakers (generic)
2 subwoofer
Subwoofers (generic)

Computer Music Equipment

1 MacBook Pro
Apple Laptops (Apple) - M1 Pro 16 inch 2021 / Mac OS Ventura 13.2
1 Live
Music Software (Ableton) - version 11.2.6
1 Max 8
Max (Cycling74) - version 8.5.4
1 D400
MIDI Mixer (Asparion)

Downloads

fiche technique

Clement Cerles

538.4 Ko

Ableton Session and everything

Robin Meier

14.17 Go

maxforlive device

Robin Meier

comment

missing in the Live Session - required for the ambisonic spatialisation

7.13 Ko


Instructions

1. Audio setup

2. Loudspeaker setup

The global system consists in:

  • PA System: 1 stereo system type L-Acoustics or equivalent. It must installed by a professional PA company so the design is adjusted to the venue for the best coverage in the public area.
  • Surround: a set of speakers placed around the audience and technically able to cover the audience area (the blue loudspeakers in the following plan). 6 loudspeakers minimum are needed. According to the venue, some extra loudspeakers could be needed in order to cover the audience area. Ideally it would be a 12 inches point source speakers (L-acoustics X12 or D&B E12).

Beware that amplification, EQ and Delay must be independent for each speaker.

  • Subwoofers: a subwoofer system, to cover the low frequencies of the PA system.

In addition to this setup, a speaker complement could be needed in case of particular acoustics conditions (f.ex front fill, extra-speakers on balconies). These choices have to be discussed with IRCAM Sound Engineer

3. Midi setup

1 Asparion midi controller. Preset file provided LiveRobin.aPres. Any midi controller with at least 11 controls will fit but you will have to reconfigure the midi mapping.

4. Software installation

We used Max 8.5.4 and Live (Ableton) 11.2.6 on Mac OS Ventura 13.2 with Apple M1 Pro 16 inch 2021.
Copy the folder Iridescence Janulyte onto your hard drive and add it to your search path in Max.
In Ableton preferences, make sure to use the external version of Max and not the Ableton bundle one.

Run installer for Fireface and ValhallaSuper.
Move the content of the « to max packages » in ~/Documents/Max 8/Packages/.

![file prefs](/media/editor/general preferences_20240206113957854342.png "file prefs")

Ableton Preferences

![ableton prefs](/media/editor/Image 13-06-2023 at 14.52_20240206114046194102.jpg "ableton prefs")

Panoramix

On track 43 runs the ro.panoramix-1e device. load the provided preset called janulyte-cite2.txt

b) Routing in Ableton

Audio Routings in Ableton

adc 1 : KM_S1 (Soprano 1)
adc 2 : KM_S2 (Soprano 2)
adc 3 : KM_S3 (Soprano 3)
adc 4 : KM_A1 (Alto 1)
adc 5 : KM_A2 (Alto 2)
adc 6 : KM_A3 (Alto 3)
adc 7 : KM_T1 (Tenor 1)
adc 8 : KM_T2 (Tenor 2)
adc 9 : KM_T3 (Tenor 3)
adc 10 : KM_B1 (Bass 1)
adc 11 : KM_B2 (Bass 2)
adc 12 : KM_B3 (Bass 3)

24 effect tracks are sent in the ro.panoramix-1e device
![ableton](/media/editor/Send to panoramix_20240206114353049953.png "ableton")

c) DSP Status Options (Fs, IO vs, S vs, Overdrive, Audio Interrupt, Vector Optimization)

![abletonprefs](/media/editor/Image 13-06-2023 at 14.52_20240206114529004574.jpg "abletonprefs")

6. Initialization routine

open ableton session
load panoramix preset
stop all playback, rewind.
position midifaders
start the piece (choir) and trigger scenes according to score.
adjust volumes on midi fader

8. Performance notes


Updated at

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+33 1 44 78 48 43

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Closed Saturday and Sunday

subway access

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