Audio setup

Loudspeaker setup

Midi setup

A Master Midi Keyboard with 88 keys (type Yamaha KX88) is required to trigger programs/events. Download the Midi Keyboard score with all instructions. 
It’s also possible to change the events by pressing spacebar.

Use BCF-2000 or Lemur to control levels of treatment (change the “Midi device” menu and choose the midi input)

Sliders

• Control 1 [ctlin 7 1] = Direct  level in dB
• Control 2 [ctlin 7 2] = Spatialization  level
• Control 3 [ctlin 7 3] = Ring modulation  level
• Control 4 [ctlin 7 4] = Harmonizer level in dB
• Control 5 [ctlin 7 5] = = reverb level in dB
• Control 6 [ctlin 7 6] = = delay level in dB
• Control 7 [ctlin 7 7] = Factorization envelopes length (1 normal length, 2 two times longer, 0.5 two times shorter)

Software installation

1. Download Wandlungen-Patch.dmg and Wandlungen-Simulation.dmgfiles.

2. In Max 8, choose …/Wandlungen_2021 in option > File preferences

3. Check the Audio status in option > Audio Status (see below)

4. Close max and open Wandlungen_2021.maxpat (red label)

DSP status

Patch presentation

The concert patch layout, as well as the DSP and control system, are based on the original version.

This patch corresponds to the latest version of the events noted in pencil by Nunes and Daubresse (contact Ircam prduction if necessary). The other versions have been lost, but it is still possible to change version by accessing [patcher midi i / o] and switching to “version 2”.

DSP engine

The DSP part consists of ring modulation, delay, harmonizer and reverb. They are based in the original version.

See the Eric Daubresse’s document for more information regarding DSP and spatialization.
http://brahms.ircam.fr/media/uploads/EN_L_92-FR.pdf

Spatialization

Sounds are fixed or they move using rhythmic movements.

Movements are controlled by patchs called circuit, BNP and lope. Rhythms are controlled by the patcher generation. The three ways of moving can be used at the same time.

The sound envelope could be controlled with the fader “Factorization envelopes length” which controls factorization of the envelope duration. The bigger superfac is, the longer will be the sound envelope in each HP.

See the Eric Daubresse’s document for more information regarding spatialization.
http://brahms.ircam.fr/media/files/2021/05/24/Lichtungen-eric.pdf

Initialization routine

Check all the points as specified in the main patch:

1. Configure audio status (see DSP status above).
2. Select the midi controller and the keyboard input.
3. Press “init” and “reset bang” buttons.
4. Turn on the DSP and midi.
5. Turn on faders.
6. Trigger the events to start (using the keyboard or the space bar, check the gate to allow it).

System calibration and tests

1. Follow the Initialization routine.
2. Check the DSP status.
3. Check the Midi controller input.
4. Check the Midi keyboard input.
5. Adjust the instruments input level.
6. Listen to the spatialisation. If the sound which goes from one to another HP is too long, decrease the superfactor. However, if you have holes of sound when the sound goes from an HP to another, increase the superfactor (see patch presentation, spatialization above for more details).

Simulation system

The simulation files could be used to test the setup before the rehearsal.

1. Download Wandlungen-Simulation .
2. Open Wandlungen-Simulation.maxpat.
3. Use it as a simulation of the adc mic input

Warning !! The simulation sound file are not complete. The file starts in the middle of the first Passacaglia.