<CsoundSynthesizer>
<CsOptions>
-odac
-m0
-d
</CsOptions>
<CsLicence>
Creative Commons Attribution-NonCommercial-ShareAlike (CC BY-NC-SA)
</CsLicence>
<CsShortLicence>
2
</CsShortLicence>
<CsInstruments>
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
Partial Emergence
by Richard Knight 2022
Installation submission for the International Csound Conference 2022
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
sr = 44100
ksmps = 128
nchnls = 2
0dbfs = 2.5
seed 0
; set DEBUG to enable lag detection and linear progression
;#define DEBUG ##
; path to progressions
#define PROGRESSIONPATH #progressions#
; initial progression; macro used by sequencing_melodic_persistence.udo
#define MEL_INITPATH #$PROGRESSIONPATH/progression1.fnmlmel#
; SONICS includes
#include "include/soundexport.xdb" ; sound database extract
#include "sonics/soundxdb.udo"
#include "sonics/array_tools.udo"
#include "sonics/sequencing.udo"
#include "sonics/sequencing_melodic.udo"
#include "sonics/sequencing_melodic_portamento.udo"
#include "sonics/sequencing_melodic_persistence.udo"
#include "sonics/bussing.udo"
#include "sonics/instrument_sineblips.udo"
#ifdef DEBUG
#include "sonics/lagdetect.udo"
#endif
; installation specific includes
#include "include/effects_global.inc"
#include "include/instruments_water.inc"
#include "include/instruments_idiophone.inc"
#include "include/instruments_hybrid.inc"
#include "include/instruments_synthesis.inc"
#include "include/sequence_sections.inc"
/*
Sections:
Array index of dimension 1 corresponds to "sequencer_s%d" instrument, where %d is the index
Array index of dimension 2:
0 duration minimum
1 duration maximum
2 follow section A
3 follow section A/B chance ratio (0 = always A, 1 = always B)
4 action section 2
*/
gisections[][] init 18, 5
#ifdef DEBUG
gisections fillarray\ ; test linear progression
60, 90, 1, 0.3, 1 ,\ ; 0 idiophone single notes
60, 90, 2, 0.3, 2 ,\ ; 1 idiophone chords, alternate mel sections with stretch chords
60, 90, 3, 0.5, 3 ,\ ; 2 bass, idiophone single notes
60, 90, 4, 0.2, 4 ,\ ; 3 bass, idiophone chords
60, 90, 5, 0.3, 5 ,\ ; 4 resonated drop stretch and idiophone notes/stretch
60, 90, 6, 0.3, 6 ,\ ; 5 resonated drop stretch
60, 90, 7, 0.5, 7 ,\ ; 6 tuned drops, stretch chords
60, 90, 8, 0.7, 8 ,\ ; 7 tuned drops, stretch chords more prominent
60, 90, 9, 0.7, 9 ,\ ; 8 drop stretch
60, 90, 10, 0.5, 10,\ ; 9 low portamento chords
60, 90, 11, 0.5, 11,\ ; 10 glitch chord, sines, drops
60, 90, 12, 0.5, 12,\ ; 11 water drops, low minimal chords, resonated drops, stretch water
60, 90, 13, 0.5, 13,\ ; 12 minimal, resonated drops
60, 90, 14, 0.5, 14,\ ; 13 reson drops buildup
60, 90, 15, 0.5, 15,\ ; 14 low drop resonated portamento chords
60, 90, 16, 0.2, 16,\ ; 15 water to idiophone
60, 90, 17, 0.5, 17,\ ; 16 idiophone/drop resonated chords, slower
30, 60, 0, 0.5, 0 ; 17 water paddling hits, resonated drop stretch
#else
gisections fillarray\ ; live progression
43 ,95 ,1 ,0.2 ,2 ,\ ; 0 idiophone single notes
63 ,125 ,2 ,0.3 ,12 ,\ ; 1 idiophone chords, alternate mel sections with stretch chords
42 ,110 ,3 ,0.2 ,4 ,\ ; 2 bass, idiophone single notes
76 ,134 ,4 ,0.2 ,5 ,\ ; 3 bass, idiophone chords
61 ,92 ,5 ,0.15 ,13 ,\ ; 4 resonated drop stretch and idiophone notes/stretch
57 ,93 ,11 ,0.2 ,6 ,\ ; 5 resonated drop stretch
47 ,105 ,5 ,0.8 ,7 ,\ ; 6 tuned drops, stretch chords
61 ,101 ,14 ,0.7 ,8 ,\ ; 7 tuned drops, stretch chords more prominent
67 ,105 ,5 ,0.8 ,9 ,\ ; 8 drop stretch
53 ,113 ,13 ,0.4 ,1 ,\ ; 9 low portamento chords
65 ,124 ,15 ,0.3 ,0 ,\ ; 10 glitch chord, sines, drops
58 ,113 ,8 ,0.5 ,12 ,\ ; 11 water drops, low minimal chords, resonated drops, stretch water
81 ,153 ,15 ,0.5 ,14 ,\ ; 12 minimal, resonated drops
69 ,112 ,17 ,0.8 ,10 ,\ ; 13 reson drops buildup
62 ,103 ,3 ,0.4 ,9 ,\ ; 14 low drop resonated portamento chords
54 ,101 ,16 ,0.2 ,5 ,\ ; 15 water to idiophone
71 ,116 ,17 ,0.4 ,4 ,\ ; 16 idiophone/drop resonated chords, slower
33 ,66 ,6 ,0.5 ,7 ; 17 water paddling hits, resonated drop stretch
#endif
; initial section
ginitsection = 0
; possible melodic progressions which are files in $PROGRESSIONPATH
gSprogressions[] fillarray "progression1.fnmlmel", "progression2.fnmlmel", "progression3.fnmlmel"
gicurrentprogression init 0
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
Control instruments
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/*
Call all performance instruments accordingly
*/
instr boot
gkseq_tempo init 100
SbootInstrs[] fillarray "audio_output", "sequencer_main", "global_delay1", "global_delay2", "global_reverb1", "global_pvsamp1"
index = 0
while (index < lenarray(SbootInstrs)) do
schedule(SbootInstrs[index], 0, -1)
index += 1
od
gimel_portamento_beatratio = 4
turnoff
endin
/*
Master output mastering/processing
*/
instr audio_output
; gkmastervolume
aL, aR bus_read "master"
iexcite = 1
aL += (exciter(aL, 3000, 20000, 10, 10)*iexcite)
aR += (exciter(aR, 3000, 20000, 10, 10)*iexcite)
bus_masterout(aL, aR)
endin
/*
Set random melodic progression
*/
instr set_progression
index = int(random(0, lenarray(gSprogressions)))
; only set if it differs from current
if (index != gicurrentprogression) then
gicurrentprogression = index
Sprogression = gSprogressions[index]
prints sprintf("Progression change: %s\n", Sprogression)
subinstrinit "mel_loadstate_fs", strcat("$PROGRESSIONPATH/", Sprogression)
endif
turnoff
endin
/*
Main section sequencer
*/
instr sequencer_main
; set up initial instrument at init time
initduration = random(gisections[ginitsection][0], gisections[ginitsection][1])
ksection init ginitsection
ksectiontime init initduration
schedule(sprintf("sequencer_s%d", ginitsection), 0, initduration)
prints sprintf("Section %d\n", ginitsection)
; react to section changes at k-rate
kabstime timeinsts
klaststarttime init 0
; if current section time is up, schedule next
if (kabstime - klaststarttime >= ksectiontime) then
; determine next section based on follow action threshold
kchance = random:k(0, 1)
if (kchance <= gisections[ksection][3]) then
ksection = gisections[ksection][4]
else
ksection = gisections[ksection][2]
endif
; get duration between specified min and max
ksectiontime = random:k(gisections[ksection][0], gisections[ksection][1]) + random:k(0.5, 1)
; schedule section subsequencer and print status
schedulek sprintfk("sequencer_s%d", ksection), 0, ksectiontime
printf "Section %d\n", ksection+random:k(1, 4), ksection
; set a new chord progression if relevant
if (random:k(0, 1) >= 0.5) then
schedulek("set_progression", 0, 1)
endif
if (random:k(0, 1) > 0.5) then
seq_settempo(random:k(20, 100))
endif
klaststarttime = kabstime
endif
#ifdef DEBUG
; write lag detection report for debugging
if (lagdetect:k() == 1) then
fprintks "lagreport.txt", "Lag in section %d at %f\n", ksection, kabstime - klaststarttime
endif
#endif
endin
</CsInstruments>
<CsScore>
f0 z
i"boot" 0.5 1 ; delay to account for initial melodic progression load
</CsScore>
</CsoundSynthesizer>