Audio and Loudspeaker setup

Software installation

For performance reasons, 5 different patches are running simultaneously on the same computer to play the electronic part of Partita 2 :

1. Partita-Deux-13.maxpat: Main patch. It has got the interface of antescofo
   
2. P2_3fc-06.maxpat: "three frequencies chord" synthesis generated with some continuous sound analysis of the violin
   
3. P2_synful_00b: Synful synthesis used to play some automatic sequences of notes
   
4. P2_spat_01b: 6 channels spatialisation
   
5. P2_string_02b: Two virtual physical modeled strings synthesis
   

The P2_synful_00b, P2_spat_01b and P2_string_02b patches should be used in their application form.

Optionnally, you can start all the required application and patch by executing the run_p2b.sh script in the terminal.

Warning: don't launch P2_spat_01b and another application at the same time

files preferences:

MaxMsp file preferences should point to :

• /PartitaDue-max-RENATER/*
  
• /PartitaDue-max-RENATER/data/antescofo_scores

DSP Overview:

This diagram shows the audio routing between the applications:

The audio lines from 9 to 16 are used to communicate between the different applications, so the inputs should be connected to the outputs of the audio soundboard. 
You can do it :

•  with an optical fiber loop.
• or in the fireface software, do ctrl + click on the name of the track. It will become pink:

The patches (or applications) communicate via Open Sound Control commands through network (UDP) messages and with audio via optic fiber link on the audio card. 

DSP status and IOSetup:

The IO mappings for each application are shown below:

Max:

String:

Synful:

Spat:

Before using the patch, quit every application to save "DSP status", so "DSP status" will be "on" everytime you open the applications.

System calibration and tests

test "antescofo" with the "testrecording" in "p antescofo":
On the main patch "Partita-Due-13", select "antescofo" in the menu "go to". 
(This menu contains shortcuts for easy access to important subpatches)




a window appears:

 
 1) Click on the bang (Number 1).  It resets everything in antescofo.
 2) Choose a score (for example "Partita-II.1.asco"). 
 3) Choose the event you want to go to. 
 4) Click on play and check that it commands all other patches.
 5) Calibrate antescofo by clicking in the "p calibration" in "p antescofo".
  Check the toggle "Calibrate $1", the waveform must be close to 1:

---

---

Simulation test:

in "Partita-2-13", choose "simulation" in the "go to" menu.
This window opens:




We have done 2 recordings of the solo violin part, in "Partita-Due/snd/filage160712" and "Partita-Due/snd/filage170712".

• Start the follower in the antescofo window as it is explained in the "initialization routine",
• Choose "filage160712" for example (arrow number1),
• It will automaticallycheck "play" in the simulation window(number 3), and you will see sound on the meter (number 4).

There are also markers on the recordings called "filage 170712" and "filage 160712". 
To begin for example at part 2, number 50 in the score, you can choose it in the window below the file name (number 2).

The simulation violin sound is routed to dac7.

Initialization routine

Run all the patches (2) and applications (3). (see "Software installation")

Open the antescofo window located in the main patch with the "go to" menu.

1. Reset antescofo by clicking on the blue button between "score" and "jump to cue" (arrow number 1)
2. Choose the score below "score".
3. Then you can :

• "start" (arrow number 6 in System calibration and tests, test"antescofo") if you follow the musician or
•  "play" (arrow number 4 in System calibration and tests, test"antescofo") if you want to play the electronic part alone without following anything.

Patch presentation

You can stop the follower by unchecking "suivi" and follow evenements manually with the space bar.

MIDI mixer Setup

Faders of the midi mixer (BCF2000) are programmed to control some parameters during the concert:

fader	initial value	ctl	chan
Master	127	7	1
Direct	100	7	2
string1	64	7	3
string2	64	7	4
3fc	64	7	5
sampler	64	7	6
synful	64	7	7
fx (effects level)	64	7	8

Performance notes

For the sound engineer: The violin must be amplified throughout the whole piece except between event I.5 and event I.18 with a crescendo between I.18 and I.19.

For the Computer Music Designer: Score following (with antescofo) is automatic in most of this work except :

• at the events II.12, II.22bis, II.39, 
• from II.46 to II.48 included, 
• II.58, II.59, 
• and from II.65 to the end of the second movement 

For these events, you should follow manually the intrumentalist (using the space bar).

• In the perpetuum mobile movement (movement4), click on play precisely when the violinist plays the fist note, the instrumentalist follows the electronic sequence.
  
• The follower is on at the beginning of the last movement (until the end of the piece)
• slow fade-out (approximately 15 ") at the end of the piece.